US3507067A - Grenade launcher having a rotatable forwardly sliding barrel and removable firing mechanism - Google Patents

Grenade launcher having a rotatable forwardly sliding barrel and removable firing mechanism Download PDF

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US3507067A
US3507067A US690672A US3507067DA US3507067A US 3507067 A US3507067 A US 3507067A US 690672 A US690672 A US 690672A US 3507067D A US3507067D A US 3507067DA US 3507067 A US3507067 A US 3507067A
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Prior art keywords
barrel
trigger
firing mechanism
firing
cylinder
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US690672A
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Henry A Into
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Colt Industries Inc
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Colts Inc
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Assigned to COLT INDUSTRIES, INC., A CORP. OF PA reassignment COLT INDUSTRIES, INC., A CORP. OF PA MERGER (SEE DOCUMENT FOR DETAILS). 10-28-86 Assignors: CENTRAL MOLONEY INC., A CORP. OF DE, COLT INDUSTRIES OPERATING CORP. A CORP. OF DE
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C27/00—Accessories; Details or attachments not otherwise provided for
    • F41C27/06—Adaptations of smallarms for firing grenades, e.g. rifle grenades, or for firing riot-control ammunition; Barrel attachments therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/39—Cocking or firing mechanisms for other types of guns, e.g. fixed breech-block types, forwardly-slidable barrel types
    • F41A19/40—Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement

Definitions

  • a firearm comprising a rotary locked, concentric barrel ⁇ assembly including an outer housing having a cartridge loading opening and an inner barrel received for sliding movement between an extended loading position and an unlocked telescoped position, a double action tiring mechanism disposed rearwardly of the barrel and removably fixed to the housing, and a trigger carried on the barrel for operating the firing mechanism when the barrel is in a locked tiring position, the barrel being rotatable from said locked tiring position to said unlocked telescoped position for automatically disconnecting the trigger from the ⁇ tiring mechanism during cartridge loading and unloading.
  • This invention relates to grenade launchers.
  • a primary object of this invention is to provide an improved grenade launcher of a type having a double action firing mechanism wherein launcher cooking and firing is accomplished in one trigger motion.
  • Another object of this invention is to provide a grenade ⁇ launcher of the above described type featuring a significantly improved locking action with fully automatic safety provisions.
  • a further object of this invention is to provide an improved grenade launcher which is particularly suited for quick and easy one-handed loading and unloading.
  • Another object of this invention is to provide an improved grenade launcher which is readily field stripped into three separate self-contained parts and which is facile to reassemble.
  • a further object of this invention is to provide an improved grenade launcher of a single shot type requiring a minimum number of hand movements to operate and which is of rugged, compact and lightweight construction.
  • Another object of this invention is to provide an improved grenade launcher attachable to a conventional small arm barrel ⁇ such as that of a small caliber rifle for rapid and accurate grenade tiring independently of and without interfering with normal rifle operation.
  • a still further object of this invention is to provide an ⁇ improved composite iirearm for quickly and easily tiring both high and low trajectory rounds and which is particularly designed to minimize any possibility of inadvertently firing a round other than ⁇ that intended even under stress of combat conditions.
  • FIG. 1 is a side View, partly broken away, showing a preferred embodiment of a grenade launcher mounted on a barrel ⁇ of a small caliber riiie with the launcher being shown in a locked firing position;
  • FIG. 2 is a side view similar to FIG. 1, partly broken away, showing the launcher in an unlocked telescoped 3,507,067 Patented Apr. 21, 1970 ICC position in broken lines and in a loading position in full lines;
  • FIG. 3 is an enlarged view, partly broken away and partly in section, taken generally along line 33 of FIG. 1;
  • FIG. 4 is an enlarged view, partly broken away and partly in section, taken generally along line 4-4 of FIG. 2;
  • FIG. 5 is an enlarged longitudinal side view of the launcher, partly broken away and partly in section, showing one side of a firing mechanism incorporatedrin this invention with the firing mechanism being shown immediately after having been tired;
  • FIG. 6 is a side View, partly broken away and partly in section, of an opposite side of the firing mechanism of FIG. 5 showing in full lines a neutral position of the liring mechanism and a cocked position thereof in broken lines;
  • FIG. 7 is a section view, partly broken away, taken generally along line 7-7 of FIG. 1 and showing a mount for attaching the launcher to the rilie barrel;
  • FIG. 8 is a side view, partly broken away and partly in section, of the mount of FIG. 7;
  • FIG. 9 is an enlarged isometric View, showing a sear incorporated in the tiring mechanism of this invention.
  • FIG. l0 is a partial section view, on a reduced scale, generally taken along line 10-10 of FIG. 5.
  • a preferred embodiment of a grenade launcher 10 constructed in accordance with this invention is shown having a pair of concentric tubular cylinders providing a housing 12 and a barrel 14 received therein for sliding movement.
  • the housing 12 is shown for illustrative purposes in a composite rearm assembly wherein the launcher 10 is centrally mounted below a barrel 16 of a conventional small arm such as a rifle 18 having a buttstock 20 through which recoil thrust is directed upon firing either the rie or the launcher.
  • the launcher 10 is firmly secured to the rifle barrel 16 by a pair of mounts 21, 22, the latter being shown extending upwardly from a forward position of the grenade housing 12 and detachably secured to the fiile barrel 16 by a clamping plate and screw arrangement 24.
  • a heat shield 26 of arcuate cross section embraces the rably barrel 16 upon fitting the shield 26 within an upwardly opening U shaped seat 28 formed in mount 22.
  • the heat shield 26 preferably is a composite part including a metal liner 30 ⁇ formed, e.g., of steel having a series of spaced, raised ribs 32 engaging the rie barrel 16 to effect localized contact, and an insulating interliner 34 preferably formed of a suitable plastic of low heat conductivity secured between the liner 30 and the seat 28.
  • the launcher 10 is mounted with its longitudinal axis or bore centerline converging with the rifle bore centerline in a direction of discharge.
  • the longitudinal axes of the launcher and rifle barrels are normally disposed in a common vertical plane during use. It is to be understood that separate high elevational grenade launcher sights are mounted on the composite firearm for grenade trajectories of increased ranges beyond approximately 50 meters,
  • a launcher firing mechanism 38 is provided including a generally rectangular frame 42 having a large central opening 44.
  • the frame 42 is attached to the housing 12 by a removable mounting pin 46 extending through an upper lug 48 of the frame 42.
  • the latter is retained in position on the housing 12 by a thrust transfer plate 50 projecting rearwardly from an upper portion of the frame 42 and received in a corresponding recess 52 inside the housing 12.
  • a suitable casing 54 protectively encloses the firing mechanism frame 42.
  • An apertured recoil plate 56 is secured at the front of the frame 42, and a spring loaded hook type extractor 57 is held captive between the frame 42 and the recoil plate 56, the parts being maintained in assembly by a threaded striker bushing 58.
  • the latter has a central opening 60 configured to receive a nose 61 of a firing pin or striker 62.
  • the rear end of striker 62 carries an adjustable end nut 64 received for sliding movement in a rear opening 66 formed in the frame 42 in coaxial alignment with the striker bushing 58 whereby the striker is supported for reciprocable movement within the frame 42 along an axis extending through the opening 60 in the striker bushing 58.
  • the striker 62 is biased toward the recoil plate 56 by a main compression spring 68 coiled about the striker 62 with opposite ends of the spring ⁇ 68 abutting a rear shoulder 70 of an enlarged annulus 72, fixed intermediate the ends of the striker 62, and an abutment ring 74 slidably mounted on the striker 62 adjacent its end nut 64.
  • a rebound compression spring 76 is coiled about the striker 62.
  • main compression spring 68 is readily set regardless of manufacturing variances and tolerances to a predetermined stroke length upon retracting and releasing the striker 62. Once set, the nut 64 is preferably fixed to the striker 62 in adjusted position by a pin 82.
  • the firing mechanism 38 is particularly suited to provide automatic cocking and firing of a loaded cartridge (such as that shown at 84 in the barrel 14 immediately in front of breech face 75 of the recoil plate 56) responsive to one continuous trigger movement.
  • a rotatable sear 86 is provided including a bridge portion 88 having a at sear edge 90 engageable with the forward shoulder 78 of the annulus 72. Opposite ends of the bridge portion 88 are integrally connected to a pair of generally S shaped arms 92, 94 each having arcuate free ends 96, 98 disposed rearwardly of the sear edge 90 on opposite sides of the striker 62.
  • a pair of supporting arms such as at 100 are each pivotally mounted at an upper end on an upper portion of the frame 42 by a pin 102 and are respectively connected to one of the S shaped arms 92, 94 by a pivot pin such as at 104.
  • Lower ends of the supporting arms I100 are interconnected by a cross pin 106 held eaptive by a traveling yoke 108 mounted on a guide rod 110 secured to the frame 42 to extend generally longitudinally thereof for supporting the traveling yoke 108 for substantially straight line reciprocating movement.
  • the sear edge 90 is positioned to engage the forward shoulder 78 of the annulus 72 such that rearward movement of the traveling yoke 108, from its forwardmost neutral position shown in full lines in FIG. 6, will withdraw the striker 62 against the bias of the main compression spring 68 responsive to rearward movement of the sear 86.
  • Rearward movement of the sear v86 simultaneously compresses a return spring 112 coiled about a plunger 114 having one end seated within a hole 116, formed in the rear portion of the frame 42.
  • the plunger 114 extends into a cylindrical opening formed in a pivot sleeve 118 having an end recess 120 receiving a protrusion 122 formed on the bridge portion 88 of the sear 86.
  • the spring 112 thus maintains the pivot sleeve 118 in pressing engagement against the sear and provides a resilient pivotal connection between the sear 86 and the frame 42.
  • a double action cocking and firing movement of the firing mechanism 38 is effected as the traveling yoke 108 is moved rearwardly to a first retracted position, shown in broken lines in FIG. 6, wherein the arcuate free ends 96, 98 of the S shaped arms 92, 94 contact a rear wall surface 124 of the frame 42 to cock the striker 62.
  • a first retracted position shown in broken lines in FIG. 6, wherein the arcuate free ends 96, 98 of the S shaped arms 92, 94 contact a rear wall surface 124 of the frame 42 to cock the striker 62.
  • Continued rearward movement of the traveling yoke 108- causes the S shaped sear arms 92, 94 to rock about their pivot pins 104, lifting the sear edge to release the striker 62 which drives forward under the force of its main compression spring 6-8 to fire the cartridge 84 (FIG. 5).
  • the sear 86 and its associated linkage including the yoke 108 automatically move forwardly under the force of the return spring 112 simultaneously with the rebounding movement of the striker 62 as a result of impact and the assistance of the rebound spring 76 whereby the sear 86 is again positioned to latch the striker annulus 72 in readiness for the next firing cycle.
  • the above described firing mechanism ensures against accidental discharge due to shock and eectively prevents any possibility of the launcher 10 being left cocked. Spring set accordingly is virtually eliminated.
  • the firing mechanism 38 is quick to operate and effectively permits a rapid second striker blow in the event of a misfire.
  • the launcher of this invention is designed to provide one-handed loading and unloading.
  • ease of operation is coupled with automatic safety provisions to completely eliminate any possibility whatsoever of firing the launcher until it is fully locked.
  • a radial projection or shoulder 126 is formed on a rear bottom portion of the launcher barrel 14 and projects through a longitudinal cartridge loading opening 128 formed in a rear, bottom side wall portion of the launcher housing 12.
  • Shoulder 126 has a recess 130 which receives an arcuate peripheral segment 132 of the recoil plate 56 projecting radially below the rear bottom portion of the housing 12.
  • a chamber locking lug 134 is defined rearwardly of the recess 130 at the extreme rear end of the barrel 14 for engaging a rear face 136 of the peripheral segment 132 of the recoil plate 56.
  • a corner edge portion 138 of the barrel 14 defining the forward extent of the recess 130 maintains an end flange 140 of the cartridge 84 in position adjacent the breech face 75 to be fired upon operating the firing mechanism 38.
  • the barrel assembly is releasably latched in a locked firing position (FIGS. l, 3 and 5) by a catch 142 engageable with a peripheral recess 144 shown notched in the edge of segment 132.
  • the catch 142 is shown disposed rearwardly of a hand or pistol grip 1-46 directly attached by a suitable fastener 148 to the shoulder 126 of the barrel 14.
  • the catch 142 is pivotally supported on the barrel 14 by a pivot pin and a compression spring 152 seated between the pistol grip 146 and a lower recessed end portion of the catch 142 releasably holds the catch in the peripheral recess 144 to maintain the barrel 14 in locked tiring position.
  • the pistol grip 146 in locked firing position, is generally disposed in a common vertical plane containing the longitudinal axes of the launcher and riiie barrels. The pistol grip 146 thus provides both clear visual as well as tactual indication of the locked firing position of the launcher.
  • the catch 142 is pressed to release the barrel 14.
  • the pistol grip 146 and the entire barrel 14 then may be rotated clockwise approximately 40 from locked firing position, to an extent limited by the housing 12 engaging shoulder 126 of the barrel 14, whereupon the chamber locking lug 134 is angularly displaced behind the recoil plate 56 to clear its peripheral segment 132.
  • the pistol grip 146 may then be pushed to slide the barrel 14 forwardly relative to the housing 12 to expose the cartridge loading opening 128.
  • the expended cartridge ⁇ 84 is automatically held in ejection position by the extractor 57 to fall through the opening 128 by gravity.
  • a guideway 154 axially extends along the inside Wall of the housing 12 for receiving a rear guide lug 156 integrally formed on the barrel 14 for guiding its longitudinal sliding movement relative to the housing 12.
  • Foulingdifficulties are minimized by the provision of a bearing guide or sleeve 158 mounted n the housing I2 to circumferentially extend about the barrel 14.
  • the bearing sleeve 158 has an interrupted inside wall providing a series of spaced contact surfaces 160 engaging the barrel 14. Between contact surfaces 160 are recessed portions 161 spaced apart from barrel 14 a distance less than the clear ance between the barrel 14 and housing 12.
  • Such construction prevents undesired foreign matter from entering between the barrel 14 and the housing 12 while at the same time permitting any small particles of dirt therebetween, e.g., to be expelled in a self-cleaning action to minimize any possibility of interference directly between adjoining metal surfaces of the barrel assembly.
  • the bearing sleeve 158 is secured in an annular groove 162 in a forward end portion of the inside ⁇ wall of the housing 12, and the bearing sleeve is preferably formed of nylon or a similar tough, heat resistant, self-lubricating material.
  • the barrel 14 carries a plurality'of external projections such as that shown at 164 spaced apart about a rear barrel portion and providing contact faces engaging the inside wall of the housing 12 to ensure smooth sliding movement of the barrel 14.
  • the contact surfaces 160 additionally effect a frictional grip on the barrel 14 irrespective of the attitude of the launcher 10.
  • a shooter is then free to release his hand from the pistol grip 146 to insert a fresh cartridge into the barrel 14 and then regrasp the pistol grip 146 and pull the barrel 14 rearwardly from the loading position into an unlocked telescoped position (shown in FIG. 4 and in broken lines in FIG. 2).
  • the pistol grip 146 is then merely rotated counterclockwise from its unlocked telescoped position (FIG. 4) into locked firing position (FIGS. 1 and 3).
  • This operating feature is in accordance with still another aspect of this invention wherein a trigger assembly 168 is carried by the launcher barrel 14 for operating the firing mechanism 38.
  • the trigger assembly 168 With the barrel 14 and the trigger assembly 168 being rotatably movable relative to the housing 12 and the traveling yoke 108 of the ring mechanism 38, the trigger assembly 168 is operatively aligned with the tiring mechanism 38 only in locked vfiring position and is automatically misaligned and disconnected from ⁇ the firing mechanism 38 during cartridge loading and unloading ⁇ to provide a significant safety feature.
  • a launcher trigger 170 is located forwardly of the pistol grip 1146 and has an integral rearwardly extending trigger extension 172 received for reciprocating movement in an elongated opening 174 formed in barrel shoulder 126 to which the pistol grip 146 is attached. With the barrel 14 in locked tiring position, the rear end of the elongated opening 174" confronts a contact face 176 of the traveling yoke 108 whereby upon squeezing the trigger 170 the trigger extension 172 moves along an axis parallel to the axis ofV movement of the traveling yoke 108 to abut its contact face 176 ⁇ to operate the firing mechanism 38.
  • a groove 178 longitudinally extends partially along the bottom surface of the triggerextension 172, ⁇ and a retaining pin 180 6 is fixed to the barrel 14 within the groove 178 to limit forward and reverse movement of the trigger assembly 168.
  • the trigger assembly 168 is continuously biased toward an extended relaxed or relase position (FIG. 1) by a compression spring 1-82 seated within the elongated opening 174 and coiled about a reduced diameter portion 183 of trigger extension 172 whereby the trigger assembly 168 of the barrel 14 is normally disassociated from the housing 12 and its ring mechanism 38 to readily permit angular displacement of the barrel during cartridge loading and unloading and to automatically disconnect the trigger from the firing mechanism 38.
  • the trigger 170 has an additional stabilizing rod 184 integrally formed at its base and extending rearwardly into the pistol grip 146 for" sliding movement. Lateral movement of the trigger assembly 168 is thereby effectively prevented to virtually eliminate any possibility of the trigger extension 172 being bound up on its retaining pin 180.
  • any possibility of inadvertently firing a round other than that intended, even under combat stress, is minimized by the above-described placement of the launcher trigger 170 forwardly of its pistol grip 146 such that the launcher trigger 170 is remotely spaced apart from a rifle trigger 186 shown conventionally mounted below the receiver 187 and immediately in front of a rie hand grip 189 attached adjacent the forward end of the buttstock 20.
  • a manually releasable cross bolt safety 190 is mounted for movement within a generally rectangular transverse opening 200 extending through the barrel shoulder 126 so as to communicate with the elongated opening 174 receiving the trigger extension 17 2.
  • the cross bolt safety 190 ⁇ has a depending locking face 194 engageable with an intermediate shoulder 196 of trigger extension 172 for physically blocking rearward movement of the trigger 170.
  • a recess 198 is preferably provided in the cross bolt safety 190 (FIG. 5) for receiving a head of a detent plunger 201 which is spring biased into engagement with the cross bolt safety 190 to maintain it in a non-firing safety position.
  • the launcher 10 is readily field stripped from a rifle 16 simply by bodily removing the firing mechanism 38 as a unit upon moving the barrel 14 into, eg., loading position and extracting the mounting pin 46.
  • the barrel 14 may then be withdrawn rearwardly from the housing to separate the launcher into three readily reassembled component parts for easy cleaning and maintenance.
  • the firing mechanism of this invention can be cocked only by pulling the trigger.
  • the firearm must be in locked ring position and the automatically engaged cross bolt safety must first be manually deactivated. Once the safety is off, the launcher is quickly and easily red by a single trigger movement and is particularly suited for rapid firing by the significantly simplified one-handed loading, firing and unloading sequence of operations.
  • a firearm comprising a barrel assembly having a cartridge loading opening and movable means for exposing and closing the cartridge loading opening, said movable means being movable between a loading position and a firing position for exposing and closing the cartridge loading opening, a fixed firing mechanism secured to the barrel-*assembly and having-an actuating drive member, and a trigger carried by said movable means and having an extension mounted for reciprocable linear movement thereon for operating the firing mechanism solely when said means is in said firing position, the trigger extension being normally disassociated from the actuating drive member such that the trigger is automatically disconnected from the firing mechanism during cartridge loading and unloading.
  • the firearm of claim 1 wherein the firing mechanism is of a double action type having means cooperating with the actuating drive member for automatically cocking and firing responsive to a single trigger Vmovement when said movable means is in said firing position.
  • the firearm of claim 1 further comprising a small arm having a barrel, the barrel assembly being mounted below the small arm barrel and having a longitudinal axis disposed in a common plane containing the longitudinal axis of the small arm barrel and converging therewith in a direction of discharge.
  • the firearm of claim 1 further comprising a small arm having a barrel and a trigger for firing the small arm, the barrel assembly being mounted below the small arm barrel, said movable means of the barrel assembly including a hand grip disposed forwardly of the small arm trigger, and the barrel assembly trigger being disposed forwardly of the barrel assembly hand grip in remotely spaced relation to the small arm trigger.
  • the barrel assembly trigger has a rearwardly directed extension received in the movable means for engaging the actuating drive member of the firing mechanism, and an additional stabilizing rod integral with the trigger and extending rearwardly into the hand grip for sliding movement therein to maintain the barrel assembly trigger against lateral movement relative to the movable means.
  • a firearm comprising a barrel assembly having a cartridge loading opening and movable means for exposing and closing the cartridge loading opening, a fixed firing mechanism secured to the barrel assembly and having an actuating drive member, a hand grip mounted on said movable means for moving it between a loading position and a firing position for exposing and closing the cartridge loading opening, and a trigger carried by said movable means for movement therewith into operative cooperation with the actuating drive member for operating the ring mechanism solely when said means is in said firing position such that the trigger is automatically disconnected from the firing mechanism during cartridge loading and unloading, a small arm having a barrel, and a mount extending upwardly from the barrel assembly for detachably securing it below the small arm barrel, the mount having an upwardly opening seat of generally U- shaped cross section, and a heat shield having an arcuate configuration contoured to fit within the seat of the mount for embracing the small arm barrel and for minimizing heat transfer therebetween.
  • the heat shield includes a metal liner having a series of raised ribs spaced apart and engaging the small arm barrel to effect localized contact therewith, and an insulating interliner secured between the metal liner and the mount.
  • a firearm comprising a firing mechanism, first and second concentric cylinders axially reciprocable relative to one another between a loading position and an unlocked telescoped position, a trigger carried by the first cylinder and having an extension for operating the firing mechanism, the first cylinder and the trigger being rotatably movable relative to the second cylinder between said unlocked telescoped position wherein the trigger extension is angularly displaced in misaligned relation to the firing mechanism, and a locked firing position wherein the trigger extension is operatively aligned with but normally disassociated from the tiring mechanism, the trigger extension and the firing mechanism being connected upon Vactuation of the trigger in the firing position.
  • the cylinders extend forwardly of the firing mechanism and constitute a barrel assembly, one of the cylinders having a cartridge loading opening, the cartridge loading opening is formed in a rear bottom portion of the second cylinder, the first cylinder being received within the second cylinder, the second cylinder having an internal longitudinal guideway therein, and the first cylinder having a rear guide lug registering with the guideway in the second cylinder when the barrel assembly is moved between said unlocked telescoped position and said loading position.
  • first and second cylinders constitute a barrel assembly extending forwardly of the firing mechanism
  • the firearm further comprises a small arm having a barrel, the barrel assembly being mounted below the small arm barrel and having a longitudinal axis disposed in a common plane containing the longitudinal axis of the small arm barrel and converging therewith in a direction of discharge, and a hand grip attached to the first cylinder for manipulating it relative to the second cylinder, the hand grip extending downwardly of the barrel assembly and disposed in said common plane when in said locked firing position providing visual indication of the same.
  • a firearm comprising a firing mechanism, a barrel assembly extending forwardly of the firing mechanism and including first and second concentric cylinders, one of the cylinders having an apertured side wall providing a cartridge loading opening, the cylinders being axially reciprocable relative to one another between a loading position wherein the cartridge loading opening is exposed and an unlocked telescoped position wherein the cartridge loading opening is closed, a trigger carried by the first cylinder for operating the firing mechanism, the first cylinder and the trigger being rotatably movable relative to the second cylinder between said unlocked telescoped position wherein the trigger is angularly displaced in misaligned relation to the firing mechanism, and a locked firing position wherein the trigger is operatively aligned with the firing mechanism to provide a rotatably locked barrel assembly having a trigger automatically disconnected from the firing mechanism during cartridge loading and unloading, and a manually releasable safety mounted for movement on the first cylinder and cooperating therewith to establish a safety position blocking trigger movement and a release position permitting trigger movement, the safety automatically
  • a firearm comprising a firing mechanism, a barrel assembly extending forwardly of the firing mechanism and including first and second concentric cylinders, quick disconnect means for detachable connection of the firing mechanism to the barrel assembly, the firing mechanism being bodily removable as a unit from the barrel assembly and permitting separation of the first and second cylinders to facilitate field stripping the firearm, one of the cylinders having an apertured side wall providing a cartridge loading.
  • the cylinders being axially reciprocable relative to one another between a loading position wherein the cartridge loading opening is exposed and an unlocked telescoped position wherein the cartridge loading opening is closed, and a trigger carried by the first cylinder for operating the firing mechanism, the first" cylinder and the trigger being rotatably movable ⁇ relative to the second cylinder between said unlocked telescoped position wherein the trigger is angularly displaced in misaligned relation to the firing mechanism, and a locked firing position wherein the trigger is operatively aligned with the firing mechanism to pro- *vide a rotatably locked barrel assembly having a trigger automatically disconnected from the firing mechanism during cartridge loading and unloading.
  • a firearm comprising a firing mechanism, a barrel assembly extending forwardly of the firing mechanism and including first and second concentric cylinders, the first cylinder being received within the second cylinder, the second ⁇ cylinder including a bearing sleeve mounted on aforward portion thereof and circumferentially extending about the first cylinder, the bearing sleeve having an interrupted inside wall providing spaced contact surfaces engaging the first cylinder, the first cylinder carrying a plurality of external projections spaced apart about a rear portion ⁇ of the first cylinder and having contact faces engaging the second cylinder, one of the cylinders having an apertured side wall providing a cartridge loading opening, the cylinders being axially reciprocable relative to one another between a loading position whereinthe cartridge loading opening is exposed and an unlocked telescoped position wherein the cartridge loading opening is closed, and a trigger carried by the first cylinder for operating the firing mechanism, the first cylinder and the trigger beingrotatably movable relative to the second cylinder between said unlocked telescoped position wherein the trigger is angularly
  • a firearm comprising a firing mechanism, a barrel assembly extending forwardly of the firing mechanism and including first and second concentric cylinders, the second cylinder having a cartridge loading opening formed in a rear bottom portion thereof, the first cylinder being received within theisecond cylinder and having a rear radial projection extending through the cartridge loading opening, ⁇ the cylinders being axially reciprocable relative to one another between a loading position wherein the cartridge loading opening is exposed and an unlocked telescoped position wherein the carrtridge loading opening is closed, and a trigger carried by the first cylinder for operating the.
  • the firing mechanism including a recoil plate defining a breech face ⁇ fixed at the rear of the second cylinder and having ⁇ an ⁇ arcuate peripheral segment projecting radially below therear bottom portion of the second cylinder, and the rear radial ⁇ projection having a recess therein for receiving the recoil plate and defining a lug at the rear of the first cylinder engaging a rear face of the peripheral segment of the recoil plate when the first cylinder is angularly moved from said unlocked telescoped position to said locked firing position.
  • Thezzfirearm of claim 14 wherein the recoil plate has a peripheral recess therein, and a spring biased catch pivotally supported on the radial projection of the first cylinder and engageable with the peripheral recess of the recoil plate for releasably latching the barrel assembly in said locked firing position.
  • a firearm comprising a firing mechanism, a barrel assembly extending forwardly of the firing mechanism and including first and second concentric cylinders, the second cylinder having a cartridge loading opening formed therein, the first cylinder being received within the second cylinder and having a rear radial projection extending through the cartridge loading opening, the cylinders being axially reciprocable relative to one another between a loading position wherein the cartridge loading opening is exposed and an unlocked telescoped position wherein the cartridge loading opening is closed, and a trigger carried by the first cylinder for operating the firing mechanism, the first cylinder and the trigger being rotatably movable relative to the second cylinder between said unlocked telescoped position wherein the trigger is angularly displaced in misaligned relation to the firing mechanism, and a locked firing position wherein the trigger is operatively aligned with the firing mechanism to provide a rotatably locked barrel assembly having a trigger automatically disconnected from the firing mechanism during cartridge loading and unloading, the first cylinder radial projection having an elongated opening therein operatively align
  • a manually releasable safety cross bolt extends through the radial projection transversely to the trigger extension for movement between a safety position wherein the cross bolt physically blocks movement of the trigger extension, and a release position wherein the trigger extension is free of interference from the cross bolt, the latter automatically engaging a portion of the second cylinder adjacent its cartridge loading opening upon rotating the first cylinder into Said unlocked telescoped position for automatically moving the cross bolt into safety position.
  • a firearm comprising a housing having a generally cylindrical bore and a recoil plate defining a breech face at the rear of the bore, a movable striker supported on the housing behind the recoil plate and biased toward the same, a barrel mounted on the housing for axial reciprocable movement for cartridge loading and unloading, a Sear for cocking the striker, a linkage mounted on the housing and supporting the Sear for both rectilinear and rotary movement, and a trigger carried on the barrel, the barrel being rotatable relative to the housing between an unlocked telescoped position wherein the trigger is misaligned relative to the Sear linkage and a locked firing position wherein the trigger is operatively aligned with the sear linkage for operating the same, the sear linkage including a traveling yoke connected to the sear and mounted on the housing for substantially straight line reciprocating movement, the trigger including an extension mounted in the barrel for movement along an axis parallel to the axis of movement of the traveling yoke when the barrel is in
  • a firearm comprising a housing having a firing mechanism frame and a generally cylindrical bore, the
  • the frame having a recoil plate fixed thereto and defining a breech face at the rear of the bore, a movable striker supported on the frame behind the recoil plate and biased toward the same, a sear for cocking the striker, and a sear linkage mounted on the frame and supporting the Sear for both rectilinear and rotary movement, the sear linkage being movable to a first position for withdrawing the sear and striker away from the recoil plate to a cocked position, the sear while in cocked position being rotatable by the linkage away from the striker upon continued movement of the linkage beyond its said first position to release the cocked striker, the firing mechanism frame being bodily removable from the housing for quick and easy assembly and disassembly.
  • the firearm of claim 20 further including a return spring between the housing and the sear continuously urging the sear and its linkage toward the recoil plate for engaging the sear with the striker.
  • a firearm comprising a housing having a generally cylindrical bore and a recoil plate defining a breech face at the rear of the bore, a moveable striker supported on the housing behind the recoil plate and biased toward the same, a sear for cocking the striker, the sear including a bridge portion having a sear edge engageable with the striker, and a pair of generally S shaped arms each having an end fixed to opposite ends of the bridge portion, respectively, and an opposite free end, and a linkage mounted on the housing and including a pair of supporting arms each pivotally mounted at one end on the housing and having a connecting pin at its other end interconnecting the supporting arms, the latter each being pivotally connected to one of the S shaped arms of the Sear, and a trigger operated traveling yoke mounted on the housing for substantially straight line reciprocating movement, the traveling yoke embracing the connecting pin in captured relation and movable to a first position for withdrawing the sear and striker away from the recoil plate to a cocked

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Description

April 211, 1970 H. A. lN'ro 3,507,067
GRENADE LAUNCHER HAVING A ROTATABLE FORWARDLY SLIDING BARREL l AND REMOVABLE FIRING MECHANISM Filed Dec. 14. 196'? 3 Sheets-Sheet 1 INVENTOR. HENRY A. l NTO ATTORNEYS Apri H. A. IN1-o 3,507,061
GRENADE LAUNCHER HAVING A ROTATABLE FORWARDLY SLIDING BARREL AND REMOVABLE FIRING MECHANISM 3 Sheets-Sheet 2 Filed Dec. 14. 196'? GRENADE LAUNCHER HAVING A ROTATABLE FORWARDLY SLIDING BARREL AND REMOVABLE FIRING MECHANISM FiledDec. 14. 1967 3 Sheets-Sheet 3 United States Patent O 3,507,067 GRENADE LAUN CHER HAVING A ROTATABLE FORWARDLY SLIDING BARREL AND REMOV- ABLEiFIRING MECHANISM Henry A. Into, Rocky Hill, Conn., assignor to Colts Inc., Hartford, Conn., a corporation of Arizona Filed Dec. 14, 1967, Ser. No. 690,672
Int. Cl. F41c 1]/02 U.S.1Cl. 42-10 23 Claims ABSTRACT OF THE DISCLOSURE A firearm comprising a rotary locked, concentric barrel` assembly including an outer housing having a cartridge loading opening and an inner barrel received for sliding movement between an extended loading position and an unlocked telescoped position, a double action tiring mechanism disposed rearwardly of the barrel and removably fixed to the housing, and a trigger carried on the barrel for operating the firing mechanism when the barrel is in a locked tiring position, the barrel being rotatable from said locked tiring position to said unlocked telescoped position for automatically disconnecting the trigger from the `tiring mechanism during cartridge loading and unloading.
This invention relates to grenade launchers.
A primary object of this invention is to provide an improved grenade launcher of a type having a double action firing mechanism wherein launcher cooking and firing is accomplished in one trigger motion.
Another object of this invention is to provide a grenade `launcher of the above described type featuring a significantly improved locking action with fully automatic safety provisions.
A further object of this invention is to provide an improved grenade launcher which is particularly suited for quick and easy one-handed loading and unloading.
Another object of this invention is to provide an improved grenade launcher which is readily field stripped into three separate self-contained parts and which is facile to reassemble.
A further object of this invention is to provide an improved grenade launcher of a single shot type requiring a minimum number of hand movements to operate and which is of rugged, compact and lightweight construction.
Another object of this invention is to provide an improved grenade launcher attachable to a conventional small arm barrel `such as that of a small caliber rifle for rapid and accurate grenade tiring independently of and without interfering with normal rifle operation.
A still further object of this invention is to provide an `improved composite iirearm for quickly and easily tiring both high and low trajectory rounds and which is particularly designed to minimize any possibility of inadvertently firing a round other than `that intended even under stress of combat conditions.
`Other objects will be in part obvious and in part pointed out more in detail hereinafter.
A better understanding of the objects, advantages, features, properties and relationships of this invention will be obtained from the following detailed description and the accompanying illustrative drawings of an exemplary embodiment of this invention.
In the drawings:
FIG. 1 is a side View, partly broken away, showing a preferred embodiment of a grenade launcher mounted on a barrel` of a small caliber riiie with the launcher being shown in a locked firing position;
FIG. 2 is a side view similar to FIG. 1, partly broken away, showing the launcher in an unlocked telescoped 3,507,067 Patented Apr. 21, 1970 ICC position in broken lines and in a loading position in full lines;
FIG. 3 is an enlarged view, partly broken away and partly in section, taken generally along line 33 of FIG. 1;
FIG. 4 is an enlarged view, partly broken away and partly in section, taken generally along line 4-4 of FIG. 2;
FIG. 5 is an enlarged longitudinal side view of the launcher, partly broken away and partly in section, showing one side of a firing mechanism incorporatedrin this invention with the firing mechanism being shown immediately after having been tired;
FIG. 6 is a side View, partly broken away and partly in section, of an opposite side of the firing mechanism of FIG. 5 showing in full lines a neutral position of the liring mechanism and a cocked position thereof in broken lines;
FIG. 7 is a section view, partly broken away, taken generally along line 7-7 of FIG. 1 and showing a mount for attaching the launcher to the rilie barrel;
FIG. 8 is a side view, partly broken away and partly in section, of the mount of FIG. 7;
FIG. 9 is an enlarged isometric View, showing a sear incorporated in the tiring mechanism of this invention; and
FIG. l0 is a partial section view, on a reduced scale, generally taken along line 10-10 of FIG. 5.
'Referring now in detail to the drawings, a preferred embodiment of a grenade launcher 10 constructed in accordance with this invention is shown having a pair of concentric tubular cylinders providing a housing 12 and a barrel 14 received therein for sliding movement.
The housing 12 is shown for illustrative purposes in a composite rearm assembly wherein the launcher 10 is centrally mounted below a barrel 16 of a conventional small arm such as a rifle 18 having a buttstock 20 through which recoil thrust is directed upon firing either the rie or the launcher. The launcher 10 is firmly secured to the rifle barrel 16 by a pair of mounts 21, 22, the latter being shown extending upwardly from a forward position of the grenade housing 12 and detachably secured to the fiile barrel 16 by a clamping plate and screw arrangement 24.
To minimize any heat transfer between the launcher 10 and the rifle 118, a heat shield 26 of arcuate cross section embraces the riile barrel 16 upon fitting the shield 26 within an upwardly opening U shaped seat 28 formed in mount 22. The heat shield 26 preferably is a composite part including a metal liner 30` formed, e.g., of steel having a series of spaced, raised ribs 32 engaging the rie barrel 16 to effect localized contact, and an insulating interliner 34 preferably formed of a suitable plastic of low heat conductivity secured between the liner 30 and the seat 28.
So that rie sight 36 can be alternately used as a grenade launcher sight for ranges up to approximately 50 meters, the launcher 10 is mounted with its longitudinal axis or bore centerline converging with the rifle bore centerline in a direction of discharge. The longitudinal axes of the launcher and rifle barrels are normally disposed in a common vertical plane during use. It is to be understood that separate high elevational grenade launcher sights are mounted on the composite firearm for grenade trajectories of increased ranges beyond approximately 50 meters,
A launcher firing mechanism 38 is provided including a generally rectangular frame 42 having a large central opening 44. The frame 42 is attached to the housing 12 by a removable mounting pin 46 extending through an upper lug 48 of the frame 42. The latter is retained in position on the housing 12 by a thrust transfer plate 50 projecting rearwardly from an upper portion of the frame 42 and received in a corresponding recess 52 inside the housing 12. A suitable casing 54 protectively encloses the firing mechanism frame 42.
An apertured recoil plate 56 is secured at the front of the frame 42, and a spring loaded hook type extractor 57 is held captive between the frame 42 and the recoil plate 56, the parts being maintained in assembly by a threaded striker bushing 58. The latter has a central opening 60 configured to receive a nose 61 of a firing pin or striker 62. The rear end of striker 62 carries an adjustable end nut 64 received for sliding movement in a rear opening 66 formed in the frame 42 in coaxial alignment with the striker bushing 58 whereby the striker is supported for reciprocable movement within the frame 42 along an axis extending through the opening 60 in the striker bushing 58.
The striker 62 is biased toward the recoil plate 56 by a main compression spring 68 coiled about the striker 62 with opposite ends of the spring `68 abutting a rear shoulder 70 of an enlarged annulus 72, fixed intermediate the ends of the striker 62, and an abutment ring 74 slidably mounted on the striker 62 adjacent its end nut 64. To maintain the nose 61 of the striker 62 within the striker bushing S8 in a normal or neutral position slightly retracted from a breech face 75 of the recoil plate 56, a rebound compression spring 76 is coiled about the striker 62. Opposite ends of the spring 76 seat against a forward shoulder 78 of the above mentioned annulus 72 and a rear face 80 of the striker bushing 58 to continuously urge striker 62 rearwardly of breech face 75. By means of the rear adjusting end nut 64, main compression spring 68 is readily set regardless of manufacturing variances and tolerances to a predetermined stroke length upon retracting and releasing the striker 62. Once set, the nut 64 is preferably fixed to the striker 62 in adjusted position by a pin 82.
In accordance with another aspect of this invention, the firing mechanism 38 is particularly suited to provide automatic cocking and firing of a loaded cartridge (such as that shown at 84 in the barrel 14 immediately in front of breech face 75 of the recoil plate 56) responsive to one continuous trigger movement.
To withdraw the striker 62 from its neutral position away from the recoil plate 56, a rotatable sear 86 is provided including a bridge portion 88 having a at sear edge 90 engageable with the forward shoulder 78 of the annulus 72. Opposite ends of the bridge portion 88 are integrally connected to a pair of generally S shaped arms 92, 94 each having arcuate free ends 96, 98 disposed rearwardly of the sear edge 90 on opposite sides of the striker 62. A pair of supporting arms such as at 100 are each pivotally mounted at an upper end on an upper portion of the frame 42 by a pin 102 and are respectively connected to one of the S shaped arms 92, 94 by a pivot pin such as at 104. Lower ends of the supporting arms I100 are interconnected by a cross pin 106 held eaptive by a traveling yoke 108 mounted on a guide rod 110 secured to the frame 42 to extend generally longitudinally thereof for supporting the traveling yoke 108 for substantially straight line reciprocating movement.
With the striker 62 in neutral position, the sear edge 90 is positioned to engage the forward shoulder 78 of the annulus 72 such that rearward movement of the traveling yoke 108, from its forwardmost neutral position shown in full lines in FIG. 6, will withdraw the striker 62 against the bias of the main compression spring 68 responsive to rearward movement of the sear 86. Rearward movement of the sear v86 simultaneously compresses a return spring 112 coiled about a plunger 114 having one end seated within a hole 116, formed in the rear portion of the frame 42. The plunger 114 extends into a cylindrical opening formed in a pivot sleeve 118 having an end recess 120 receiving a protrusion 122 formed on the bridge portion 88 of the sear 86. The spring 112 thus maintains the pivot sleeve 118 in pressing engagement against the sear and provides a resilient pivotal connection between the sear 86 and the frame 42.
A double action cocking and firing movement of the firing mechanism 38 is effected as the traveling yoke 108 is moved rearwardly to a first retracted position, shown in broken lines in FIG. 6, wherein the arcuate free ends 96, 98 of the S shaped arms 92, 94 contact a rear wall surface 124 of the frame 42 to cock the striker 62. Continued rearward movement of the traveling yoke 108- causes the S shaped sear arms 92, 94 to rock about their pivot pins 104, lifting the sear edge to release the striker 62 which drives forward under the force of its main compression spring 6-8 to fire the cartridge 84 (FIG. 5).
The sear 86 and its associated linkage including the yoke 108 automatically move forwardly under the force of the return spring 112 simultaneously with the rebounding movement of the striker 62 as a result of impact and the assistance of the rebound spring 76 whereby the sear 86 is again positioned to latch the striker annulus 72 in readiness for the next firing cycle.
The above described firing mechanism ensures against accidental discharge due to shock and eectively prevents any possibility of the launcher 10 being left cocked. Spring set accordingly is virtually eliminated. In addition to being simple and reliable, the firing mechanism 38 is quick to operate and effectively permits a rapid second striker blow in the event of a misfire.
Referring now to the barrel assembly of the launcher 10, to promote simplicity of operation, the launcher of this invention is designed to provide one-handed loading and unloading. In addition, ease of operation is coupled with automatic safety provisions to completely eliminate any possibility whatsoever of firing the launcher until it is fully locked.
A radial projection or shoulder 126 is formed on a rear bottom portion of the launcher barrel 14 and projects through a longitudinal cartridge loading opening 128 formed in a rear, bottom side wall portion of the launcher housing 12. As best seen in FIGS. 3-5, Shoulder 126 has a recess 130 which receives an arcuate peripheral segment 132 of the recoil plate 56 projecting radially below the rear bottom portion of the housing 12. A chamber locking lug 134 is defined rearwardly of the recess 130 at the extreme rear end of the barrel 14 for engaging a rear face 136 of the peripheral segment 132 of the recoil plate 56. With the chamber locking lug 134 thus positioned immediately in front of the firing mechanism 138 in engagement with the rear face 136 of the recoil plate 56, a corner edge portion 138 of the barrel 14 defining the forward extent of the recess 130 maintains an end flange 140 of the cartridge 84 in position adjacent the breech face 75 to be fired upon operating the firing mechanism 38.
The barrel assembly is releasably latched in a locked firing position (FIGS. l, 3 and 5) by a catch 142 engageable with a peripheral recess 144 shown notched in the edge of segment 132. The catch 142 is shown disposed rearwardly of a hand or pistol grip 1-46 directly attached by a suitable fastener 148 to the shoulder 126 of the barrel 14. The catch 142 is pivotally supported on the barrel 14 by a pivot pin and a compression spring 152 seated between the pistol grip 146 and a lower recessed end portion of the catch 142 releasably holds the catch in the peripheral recess 144 to maintain the barrel 14 in locked tiring position. It will be noted that in locked firing position, the pistol grip 146 is generally disposed in a common vertical plane containing the longitudinal axes of the launcher and riiie barrels. The pistol grip 146 thus provides both clear visual as well as tactual indication of the locked firing position of the launcher.
To expose the cartridge loading opening 128, the catch 142 is pressed to release the barrel 14. The pistol grip 146 and the entire barrel 14 then may be rotated clockwise approximately 40 from locked firing position, to an extent limited by the housing 12 engaging shoulder 126 of the barrel 14, whereupon the chamber locking lug 134 is angularly displaced behind the recoil plate 56 to clear its peripheral segment 132. The pistol grip 146 may then be pushed to slide the barrel 14 forwardly relative to the housing 12 to expose the cartridge loading opening 128. As the barrel 14 is moved forwardly, the expended cartridge` 84 is automatically held in ejection position by the extractor 57 to fall through the opening 128 by gravity.
In the illustrated embodiment, a guideway 154 axially extends along the inside Wall of the housing 12 for receiving a rear guide lug 156 integrally formed on the barrel 14 for guiding its longitudinal sliding movement relative to the housing 12.
Foulingdifficulties are minimized by the provision of a bearing guide or sleeve 158 mounted n the housing I2 to circumferentially extend about the barrel 14. The bearing sleeve 158 has an interrupted inside wall providing a series of spaced contact surfaces 160 engaging the barrel 14. Between contact surfaces 160 are recessed portions 161 spaced apart from barrel 14 a distance less than the clear ance between the barrel 14 and housing 12. Such construction prevents undesired foreign matter from entering between the barrel 14 and the housing 12 while at the same time permitting any small particles of dirt therebetween, e.g., to be expelled in a self-cleaning action to minimize any possibility of interference directly between adjoining metal surfaces of the barrel assembly. In the specific illustrated embodiment, the bearing sleeve 158 is secured in an annular groove 162 in a forward end portion of the inside` wall of the housing 12, and the bearing sleeve is preferably formed of nylon or a similar tough, heat resistant, self-lubricating material. The barrel 14 carries a plurality'of external projections such as that shown at 164 spaced apart about a rear barrel portion and providing contact faces engaging the inside wall of the housing 12 to ensure smooth sliding movement of the barrel 14.
The contact surfaces 160 additionally effect a frictional grip on the barrel 14 irrespective of the attitude of the launcher 10. With the cartridge loading opening 128 now fully exposed with the barrel 14 extended in loading position `as shown in full lines in FIG. 2, a shooter is then free to release his hand from the pistol grip 146 to insert a fresh cartridge into the barrel 14 and then regrasp the pistol grip 146 and pull the barrel 14 rearwardly from the loading position into an unlocked telescoped position (shown in FIG. 4 and in broken lines in FIG. 2). The pistol grip 146 is then merely rotated counterclockwise from its unlocked telescoped position (FIG. 4) into locked firing position (FIGS. 1 and 3).
Only when the barrel 14 is in locked tiring position and fully locked is the firing mechanism 38 conditioned to be operated. This operating feature is in accordance with still another aspect of this invention wherein a trigger assembly 168 is carried by the launcher barrel 14 for operating the firing mechanism 38. With the barrel 14 and the trigger assembly 168 being rotatably movable relative to the housing 12 and the traveling yoke 108 of the ring mechanism 38, the trigger assembly 168 is operatively aligned with the tiring mechanism 38 only in locked vfiring position and is automatically misaligned and disconnected from `the firing mechanism 38 during cartridge loading and unloading `to provide a significant safety feature.
A launcher trigger 170 is located forwardly of the pistol grip 1146 and has an integral rearwardly extending trigger extension 172 received for reciprocating movement in an elongated opening 174 formed in barrel shoulder 126 to which the pistol grip 146 is attached. With the barrel 14 in locked tiring position, the rear end of the elongated opening 174" confronts a contact face 176 of the traveling yoke 108 whereby upon squeezing the trigger 170 the trigger extension 172 moves along an axis parallel to the axis ofV movement of the traveling yoke 108 to abut its contact face 176 `to operate the firing mechanism 38. A groove 178 longitudinally extends partially along the bottom surface of the triggerextension 172, `and a retaining pin 180 6 is fixed to the barrel 14 within the groove 178 to limit forward and reverse movement of the trigger assembly 168.
The trigger assembly 168 is continuously biased toward an extended relaxed or relase position (FIG. 1) by a compression spring 1-82 seated within the elongated opening 174 and coiled about a reduced diameter portion 183 of trigger extension 172 whereby the trigger assembly 168 of the barrel 14 is normally disassociated from the housing 12 and its ring mechanism 38 to readily permit angular displacement of the barrel during cartridge loading and unloading and to automatically disconnect the trigger from the firing mechanism 38.
The trigger 170 has an additional stabilizing rod 184 integrally formed at its base and extending rearwardly into the pistol grip 146 for" sliding movement. Lateral movement of the trigger assembly 168 is thereby effectively prevented to virtually eliminate any possibility of the trigger extension 172 being bound up on its retaining pin 180.
With the launcher 10 mounted on the rifle barrel 16 to form a composite firearm, any possibility of inadvertently firing a round other than that intended, even under combat stress, is minimized by the above-described placement of the launcher trigger 170 forwardly of its pistol grip 146 such that the launcher trigger 170 is remotely spaced apart from a rifle trigger 186 shown conventionally mounted below the receiver 187 and immediately in front of a rie hand grip 189 attached adjacent the forward end of the buttstock 20.
To effect fully automatic safety provisions, a manually releasable cross bolt safety 190 is mounted for movement within a generally rectangular transverse opening 200 extending through the barrel shoulder 126 so as to communicate with the elongated opening 174 receiving the trigger extension 17 2.
The cross bolt safety 190` has a depending locking face 194 engageable with an intermediate shoulder 196 of trigger extension 172 for physically blocking rearward movement of the trigger 170. A recess 198 is preferably provided in the cross bolt safety 190 (FIG. 5) for receiving a head of a detent plunger 201 which is spring biased into engagement with the cross bolt safety 190 to maintain it in a non-firing safety position. Upon moving the cross bolt safety 190 to the shooters left into a release position, the locking face 194 is moved out of the elongated opening 174 to free the trigger extension 172 for rearward movement upon squeezing the trigger 170 to re the cartridge 84. After the trigger 170 is released to return under the force of spring 182 to its relaxed position wherein the trigger assembly 168 is disassociated from the firing mechanism 38, catch 142 is released and the pistol grip 146 is rotated from its vertical firing position into its unlocked telescoped position. Upon moving into unlocked telescoped position, the cross bolt safety 190 automatically engages a portion of housing 12 defining the cartridge loading opening 128 to move the cross bolt safety 190 into non-firing safety position. Such action ensures against accidental discharge of the launcher 10 when the next fresh cartridge is loaded with the barrel assembly in locked firing position.
By virtue of the above-described construction, the launcher 10 is readily field stripped from a rifle 16 simply by bodily removing the firing mechanism 38 as a unit upon moving the barrel 14 into, eg., loading position and extracting the mounting pin 46. The barrel 14 may then be withdrawn rearwardly from the housing to separate the launcher into three readily reassembled component parts for easy cleaning and maintenance.
From the above description, it will be apparent that the firing mechanism of this invention can be cocked only by pulling the trigger. The firearm, however, must be in locked ring position and the automatically engaged cross bolt safety must first be manually deactivated. Once the safety is off, the launcher is quickly and easily red by a single trigger movement and is particularly suited for rapid firing by the significantly simplified one-handed loading, firing and unloading sequence of operations.
As will be apparent to persons skilled in the art, various modifications and adaptations of the foregoing specific disclosure can be made without departing from the underlying principles and teachings of the present invention.
I claim:
1. A firearm comprising a barrel assembly having a cartridge loading opening and movable means for exposing and closing the cartridge loading opening, said movable means being movable between a loading position and a firing position for exposing and closing the cartridge loading opening, a fixed firing mechanism secured to the barrel-*assembly and having-an actuating drive member, and a trigger carried by said movable means and having an extension mounted for reciprocable linear movement thereon for operating the firing mechanism solely when said means is in said firing position, the trigger extension being normally disassociated from the actuating drive member such that the trigger is automatically disconnected from the firing mechanism during cartridge loading and unloading.
2. The firearm of claim 1 wherein the firing mechanism is of a double action type having means cooperating with the actuating drive member for automatically cocking and firing responsive to a single trigger Vmovement when said movable means is in said firing position.
3. The firearm of claim 1 further comprising a small arm having a barrel, the barrel assembly being mounted below the small arm barrel and having a longitudinal axis disposed in a common plane containing the longitudinal axis of the small arm barrel and converging therewith in a direction of discharge.
4. The firearm of claim 1 further comprising a small arm having a barrel and a trigger for firing the small arm, the barrel assembly being mounted below the small arm barrel, said movable means of the barrel assembly including a hand grip disposed forwardly of the small arm trigger, and the barrel assembly trigger being disposed forwardly of the barrel assembly hand grip in remotely spaced relation to the small arm trigger.
5. The firearm of claim 4 wherein the barrel assembly trigger has a rearwardly directed extension received in the movable means for engaging the actuating drive member of the firing mechanism, and an additional stabilizing rod integral with the trigger and extending rearwardly into the hand grip for sliding movement therein to maintain the barrel assembly trigger against lateral movement relative to the movable means.
6. A firearm comprising a barrel assembly having a cartridge loading opening and movable means for exposing and closing the cartridge loading opening, a fixed firing mechanism secured to the barrel assembly and having an actuating drive member, a hand grip mounted on said movable means for moving it between a loading position and a firing position for exposing and closing the cartridge loading opening, and a trigger carried by said movable means for movement therewith into operative cooperation with the actuating drive member for operating the ring mechanism solely when said means is in said firing position such that the trigger is automatically disconnected from the firing mechanism during cartridge loading and unloading, a small arm having a barrel, and a mount extending upwardly from the barrel assembly for detachably securing it below the small arm barrel, the mount having an upwardly opening seat of generally U- shaped cross section, and a heat shield having an arcuate configuration contoured to fit within the seat of the mount for embracing the small arm barrel and for minimizing heat transfer therebetween.
7. The firearm of claim 6 wherein the heat shield includes a metal liner having a series of raised ribs spaced apart and engaging the small arm barrel to effect localized contact therewith, and an insulating interliner secured between the metal liner and the mount.
8. A firearm comprising a firing mechanism, first and second concentric cylinders axially reciprocable relative to one another between a loading position and an unlocked telescoped position, a trigger carried by the first cylinder and having an extension for operating the firing mechanism, the first cylinder and the trigger being rotatably movable relative to the second cylinder between said unlocked telescoped position wherein the trigger extension is angularly displaced in misaligned relation to the firing mechanism, and a locked firing position wherein the trigger extension is operatively aligned with but normally disassociated from the tiring mechanism, the trigger extension and the firing mechanism being connected upon Vactuation of the trigger in the firing position.
9. The firearm of claim 8 wherein the cylinders extend forwardly of the firing mechanism and constitute a barrel assembly, one of the cylinders having a cartridge loading opening, the cartridge loading opening is formed in a rear bottom portion of the second cylinder, the first cylinder being received within the second cylinder, the second cylinder having an internal longitudinal guideway therein, and the first cylinder having a rear guide lug registering with the guideway in the second cylinder when the barrel assembly is moved between said unlocked telescoped position and said loading position.
10. The firearm of claim 8 wherein the first and second cylinders constitute a barrel assembly extending forwardly of the firing mechanism, and wherein the firearm further comprises a small arm having a barrel, the barrel assembly being mounted below the small arm barrel and having a longitudinal axis disposed in a common plane containing the longitudinal axis of the small arm barrel and converging therewith in a direction of discharge, and a hand grip attached to the first cylinder for manipulating it relative to the second cylinder, the hand grip extending downwardly of the barrel assembly and disposed in said common plane when in said locked firing position providing visual indication of the same.
11. A firearm comprising a firing mechanism, a barrel assembly extending forwardly of the firing mechanism and including first and second concentric cylinders, one of the cylinders having an apertured side wall providing a cartridge loading opening, the cylinders being axially reciprocable relative to one another between a loading position wherein the cartridge loading opening is exposed and an unlocked telescoped position wherein the cartridge loading opening is closed, a trigger carried by the first cylinder for operating the firing mechanism, the first cylinder and the trigger being rotatably movable relative to the second cylinder between said unlocked telescoped position wherein the trigger is angularly displaced in misaligned relation to the firing mechanism, and a locked firing position wherein the trigger is operatively aligned with the firing mechanism to provide a rotatably locked barrel assembly having a trigger automatically disconnected from the firing mechanism during cartridge loading and unloading, and a manually releasable safety mounted for movement on the first cylinder and cooperating therewith to establish a safety position blocking trigger movement and a release position permitting trigger movement, the safety automatically engaging the second cylinder and being moved thereby into safety position responsive to rotation of the first cylinder from said locked firing position into said unlocked telescoped position.
12. A firearm comprising a firing mechanism, a barrel assembly extending forwardly of the firing mechanism and including first and second concentric cylinders, quick disconnect means for detachable connection of the firing mechanism to the barrel assembly, the firing mechanism being bodily removable as a unit from the barrel assembly and permitting separation of the first and second cylinders to facilitate field stripping the firearm, one of the cylinders having an apertured side wall providing a cartridge loading. opening, the cylinders being axially reciprocable relative to one another between a loading position wherein the cartridge loading opening is exposed and an unlocked telescoped position wherein the cartridge loading opening is closed, and a trigger carried by the first cylinder for operating the firing mechanism, the first" cylinder and the trigger being rotatably movable `relative to the second cylinder between said unlocked telescoped position wherein the trigger is angularly displaced in misaligned relation to the firing mechanism, and a locked firing position wherein the trigger is operatively aligned with the firing mechanism to pro- *vide a rotatably locked barrel assembly having a trigger automatically disconnected from the firing mechanism during cartridge loading and unloading.
13.` A firearm comprising a firing mechanism, a barrel assembly extending forwardly of the firing mechanism and including first and second concentric cylinders, the first cylinder being received within the second cylinder, the second` cylinder including a bearing sleeve mounted on aforward portion thereof and circumferentially extending about the first cylinder, the bearing sleeve having an interrupted inside wall providing spaced contact surfaces engaging the first cylinder, the first cylinder carrying a plurality of external projections spaced apart about a rear portion `of the first cylinder and having contact faces engaging the second cylinder, one of the cylinders having an apertured side wall providing a cartridge loading opening, the cylinders being axially reciprocable relative to one another between a loading position whereinthe cartridge loading opening is exposed and an unlocked telescoped position wherein the cartridge loading opening is closed, and a trigger carried by the first cylinder for operating the firing mechanism, the first cylinder and the trigger beingrotatably movable relative to the second cylinder between said unlocked telescoped position wherein the trigger is angularly displaced in misaligned relation to the firing mechanism, and a locked firing position wherein the trigger is operatively aligned with the firing mechanism to provide a rotatably locked barrel assembly having a trigger automatically disconnected from the firing mechanism during cartridge loading and unloading.
14n A firearm comprising a firing mechanism, a barrel assembly extending forwardly of the firing mechanism and including first and second concentric cylinders, the second cylinder having a cartridge loading opening formed in a rear bottom portion thereof, the first cylinder being received within theisecond cylinder and having a rear radial projection extending through the cartridge loading opening, `the cylinders being axially reciprocable relative to one another between a loading position wherein the cartridge loading opening is exposed and an unlocked telescoped position wherein the carrtridge loading opening is closed, and a trigger carried by the first cylinder for operating the. firing mechanism, the rst cylinder and the trigger zbeing rotatably movable relative to the second cylinder between said unlocked telescoped position wherein the trigger is angularly displaced in misaligned relation to the firing mechanism, and a locked firing position wherein the trigger is operatively aligned with the firing mechanism to provide a rotatably locked barrel assembly having a trigger automatically disconnected from the ring mechanism during cartridge loading and unloading, the` firing mechanism `including a recoil plate defining a breech face` fixed at the rear of the second cylinder and having `an `arcuate peripheral segment projecting radially below therear bottom portion of the second cylinder, and the rear radial` projection having a recess therein for receiving the recoil plate and defining a lug at the rear of the first cylinder engaging a rear face of the peripheral segment of the recoil plate when the first cylinder is angularly moved from said unlocked telescoped position to said locked firing position.
15. Thezzfirearm of claim 14 wherein the recoil plate has a peripheral recess therein, and a spring biased catch pivotally supported on the radial projection of the first cylinder and engageable with the peripheral recess of the recoil plate for releasably latching the barrel assembly in said locked firing position.
16. A firearm comprising a firing mechanism, a barrel assembly extending forwardly of the firing mechanism and including first and second concentric cylinders, the second cylinder having a cartridge loading opening formed therein, the first cylinder being received within the second cylinder and having a rear radial projection extending through the cartridge loading opening, the cylinders being axially reciprocable relative to one another between a loading position wherein the cartridge loading opening is exposed and an unlocked telescoped position wherein the cartridge loading opening is closed, and a trigger carried by the first cylinder for operating the firing mechanism, the first cylinder and the trigger being rotatably movable relative to the second cylinder between said unlocked telescoped position wherein the trigger is angularly displaced in misaligned relation to the firing mechanism, and a locked firing position wherein the trigger is operatively aligned with the firing mechanism to provide a rotatably locked barrel assembly having a trigger automatically disconnected from the firing mechanism during cartridge loading and unloading, the first cylinder radial projection having an elongated opening therein operatively aligned with the firing mechanism solely upon positioning the first cylinder in said locked firing position, and the trigger having an extension reciprocable in the elongated opening for operating the firing mechanism, the trigger being continuously biased toward an extended inactive position with its extension disassociated from the firing mechanism.
17. The firearm of claim 16 wherein a manually releasable safety cross bolt extends through the radial projection transversely to the trigger extension for movement between a safety position wherein the cross bolt physically blocks movement of the trigger extension, and a release position wherein the trigger extension is free of interference from the cross bolt, the latter automatically engaging a portion of the second cylinder adjacent its cartridge loading opening upon rotating the first cylinder into Said unlocked telescoped position for automatically moving the cross bolt into safety position.
18. A firearm comprising a housing having a generally cylindrical bore and a recoil plate defining a breech face at the rear of the bore, a movable striker supported on the housing behind the recoil plate and biased toward the same, a barrel mounted on the housing for axial reciprocable movement for cartridge loading and unloading, a Sear for cocking the striker, a linkage mounted on the housing and supporting the Sear for both rectilinear and rotary movement, and a trigger carried on the barrel, the barrel being rotatable relative to the housing between an unlocked telescoped position wherein the trigger is misaligned relative to the Sear linkage and a locked firing position wherein the trigger is operatively aligned with the sear linkage for operating the same, the sear linkage including a traveling yoke connected to the sear and mounted on the housing for substantially straight line reciprocating movement, the trigger including an extension mounted in the barrel for movement along an axis parallel to the axis of movement of the traveling yoke when the barrel is in locked firing position, and the trigger being continuously biased toward an extended release position with its extension disassociated from the housing to permit the barrel to be angularly displaced thereto and its trigger automatically disconnected from the sear linkage in misaligned relation thereto during cartridge loading and unloading.
19. The firearm of claim 18 wherein the sear linkage is movable to a first position for withdrawing the sear and striker away from the recoil plate to a cocked position, the sear while in cocked position being rotatable 1l by the linkage away from the striker upon continued movement of the linkage beyond its said first position to release the cocked striker.
20. A firearm comprising a housing having a firing mechanism frame and a generally cylindrical bore, the
frame having a recoil plate fixed thereto and defining a breech face at the rear of the bore, a movable striker supported on the frame behind the recoil plate and biased toward the same, a sear for cocking the striker, and a sear linkage mounted on the frame and supporting the Sear for both rectilinear and rotary movement, the sear linkage being movable to a first position for withdrawing the sear and striker away from the recoil plate to a cocked position, the sear while in cocked position being rotatable by the linkage away from the striker upon continued movement of the linkage beyond its said first position to release the cocked striker, the firing mechanism frame being bodily removable from the housing for quick and easy assembly and disassembly.
21. The firearm of claim 20 further including a return spring between the housing and the sear continuously urging the sear and its linkage toward the recoil plate for engaging the sear with the striker.
22. A firearm comprising a housing having a generally cylindrical bore and a recoil plate defining a breech face at the rear of the bore, a moveable striker supported on the housing behind the recoil plate and biased toward the same, a sear for cocking the striker, the sear including a bridge portion having a sear edge engageable with the striker, and a pair of generally S shaped arms each having an end fixed to opposite ends of the bridge portion, respectively, and an opposite free end, and a linkage mounted on the housing and including a pair of supporting arms each pivotally mounted at one end on the housing and having a connecting pin at its other end interconnecting the supporting arms, the latter each being pivotally connected to one of the S shaped arms of the Sear, and a trigger operated traveling yoke mounted on the housing for substantially straight line reciprocating movement, the traveling yoke embracing the connecting pin in captured relation and movable to a first position for withdrawing the sear and striker away from the recoil plate to a cocked position wherein the free ends of the sear engage the housing, the sear while in cocked position being rotatable by the linkage away from the striker upon continued movement of the traveling yoke beyond its said first position to release the cocked striker.
23. The firearm of claim 22 wherein the free ends of the sear arms are each contoured to provide a cocking movement upon engaging the housing to effect rotation of the sear edge away from the striker to release the same responsive to continued movement of the traveling yoke beyond its said first position.
References Cited UNITED STATES PATENTS 511,940 1/ 1894 Fairbanks 42-1 1,067,004 7/ 1913 Decker 42-69 1,316,803 9/1919 Pugsley 42-69 2,347,645 5/ 1944 Sherrer et al 42-69 2,397,572 4/ 1946 Weaver 42-10 2,888,768 6/1959 Taylor 42-1 3,279,114 10/ 1966 Lewis et al. 42-1.2
FOREIGN PATENTS 215,423 9/ 1941 Switzerland.
SAMUEL FEINBERG, Primary Examiner CHARLES T. JORDAN, Assistant Examiner U.S. Cl. X.R.
US690672A 1967-12-14 1967-12-14 Grenade launcher having a rotatable forwardly sliding barrel and removable firing mechanism Expired - Lifetime US3507067A (en)

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Cited By (31)

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US3641691A (en) * 1969-05-21 1972-02-15 Us Army Grenade launcher with pivotally mounted barrel
US4318329A (en) * 1978-07-29 1982-03-09 Diehl Gmbh & Co. Anti-tank weapon
US4733489A (en) * 1984-11-14 1988-03-29 R/M Equipment, Inc. Apparatus for reconfiguring automatic rifle to include grenade launching function
US5235771A (en) * 1991-12-20 1993-08-17 Colt's Manufacturing Company Inc. Hand held grenade launcher
EP0800050A1 (en) * 1996-04-03 1997-10-08 HECKLER & KOCH GMBH Multiple function weapon
US5719349A (en) * 1995-12-08 1998-02-17 The United States Of America As Represented By The Secretary Of The Navy Shoulder-launched multi-purpose assault weapon with a removable rocket tube and spotter barrel
US6014923A (en) * 1995-10-30 2000-01-18 The United States Of America As Represented By The Secretary Of The Navy Shoulder-fired multi-purpose assault weapon
DE19925864C1 (en) * 1999-06-07 2000-08-10 Heckler & Koch Gmbh Grenade launcher for fixture to rifle has launching barrel pivotable around static cross axis near to mouth, with base housing supporting trigger mechanism
WO2004033981A3 (en) * 2002-10-10 2005-05-12 R M Equipment Inc Barrel latch locking device
US20060005445A1 (en) * 2004-07-08 2006-01-12 Elder Samuel F Assault rifle hand and forearm guard and method of use
US20060048426A1 (en) * 2004-09-08 2006-03-09 Crandall David L Separating firearm sear
US20060048427A1 (en) * 2004-09-09 2006-03-09 Crandall David L Firearm trigger assembly
US20060048430A1 (en) * 2004-09-09 2006-03-09 Crandall David L Forwardly movable assembly for a firearm
US20060048425A1 (en) * 2004-09-08 2006-03-09 Frickey Steven J Forwardly-placed firearm fire control assembly
US7487612B2 (en) 2005-05-31 2009-02-10 Fn Herstal S.A. Grenade launcher
US20110168149A1 (en) * 2010-01-12 2011-07-14 Nadel Craig P Toy Gun Assembly
US8393107B2 (en) * 2008-08-26 2013-03-12 Adcor Industries, Inc. Firearm assembly including a first weapon and a second weapon selectively mounted to the first weapon
US20140007763A1 (en) * 2012-07-03 2014-01-09 Slide Fire Solutions, Lp Forward-pressed finger rest for slide-action stock
US8967033B1 (en) * 2010-06-09 2015-03-03 J Patrick O'Brien Concentric cylinder gas-operated automatic firearm
US20160153744A1 (en) * 2014-12-01 2016-06-02 Wilcox Industries Corp. Modular grenade launcher system
US9546836B2 (en) 2009-11-18 2017-01-17 Slide Fire Solutions Lp Slide stock for firearm with retractable lock pin
US9612083B2 (en) 2014-12-31 2017-04-04 Slide Fire Solutions Lp Adjustable length slide-action rifle stock
US9612082B2 (en) 2012-11-15 2017-04-04 Slide Fire Solutions Lp Adjustable slide-action stock for firearms
US10088271B2 (en) * 2013-03-28 2018-10-02 Rheinmetall Waffe Munition Gmbh Firing device for firing cartridge ammunition
US10113825B2 (en) * 2016-05-10 2018-10-30 Kudzu Arms, Llc Systems and methods for attaching a secondary firearm to a primary firearm
US10119781B1 (en) 2017-05-08 2018-11-06 Wilcox Industries Corp. Grenade launcher and pivot mechanism for same
US10234222B2 (en) * 2016-08-09 2019-03-19 Gonzalo Couce Single 40 mm projectile launcher
US20190212082A1 (en) * 2018-01-09 2019-07-11 William E. Masters Compact shotgun, multipurpose mount, and trigger assembly
US11035646B2 (en) 2018-12-21 2021-06-15 Wilcox Industries Corp. Grenade launcher with modular interface
US11047639B2 (en) 2017-02-08 2021-06-29 Black Site, Inc. Method and grip module for firearm modification using a firing control unit
US20230175801A1 (en) * 2021-12-02 2023-06-08 Berserk Sweden Ab Grenade launcher

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Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641691A (en) * 1969-05-21 1972-02-15 Us Army Grenade launcher with pivotally mounted barrel
US4318329A (en) * 1978-07-29 1982-03-09 Diehl Gmbh & Co. Anti-tank weapon
US4733489A (en) * 1984-11-14 1988-03-29 R/M Equipment, Inc. Apparatus for reconfiguring automatic rifle to include grenade launching function
US5235771A (en) * 1991-12-20 1993-08-17 Colt's Manufacturing Company Inc. Hand held grenade launcher
US6014923A (en) * 1995-10-30 2000-01-18 The United States Of America As Represented By The Secretary Of The Navy Shoulder-fired multi-purpose assault weapon
US5719349A (en) * 1995-12-08 1998-02-17 The United States Of America As Represented By The Secretary Of The Navy Shoulder-launched multi-purpose assault weapon with a removable rocket tube and spotter barrel
EP0800050A1 (en) * 1996-04-03 1997-10-08 HECKLER & KOCH GMBH Multiple function weapon
DE19925864C1 (en) * 1999-06-07 2000-08-10 Heckler & Koch Gmbh Grenade launcher for fixture to rifle has launching barrel pivotable around static cross axis near to mouth, with base housing supporting trigger mechanism
US6481145B2 (en) * 1999-06-07 2002-11-19 Heckler & Koch Gmbh Grenade launcher
EP1556660A4 (en) * 2002-10-10 2010-08-04 R M Equipment Inc Barrel latch locking device
WO2004033981A3 (en) * 2002-10-10 2005-05-12 R M Equipment Inc Barrel latch locking device
EP1556660A2 (en) * 2002-10-10 2005-07-27 R/M Equipment, Inc. Barrel latch locking device
US7891130B2 (en) 2002-10-10 2011-02-22 R/M Equipment, Inc. Barrel latch locking device
US20110016765A1 (en) * 2002-10-10 2011-01-27 R/M Equipment, Inc. Barrel latch locking device
US20060005445A1 (en) * 2004-07-08 2006-01-12 Elder Samuel F Assault rifle hand and forearm guard and method of use
US7155857B2 (en) * 2004-07-08 2007-01-02 Elder Samuel F Assault rifle hand and forearm guard and method of use
US7634959B2 (en) 2004-09-08 2009-12-22 Battelle Energy Alliance, Llc Forwardly-placed firearm fire control assembly
US20060048426A1 (en) * 2004-09-08 2006-03-09 Crandall David L Separating firearm sear
US20060048425A1 (en) * 2004-09-08 2006-03-09 Frickey Steven J Forwardly-placed firearm fire control assembly
US7225574B2 (en) * 2004-09-09 2007-06-05 Battelle Energy Alliance, Llc Forwardly movable assembly for a firearm
US7661220B2 (en) 2004-09-09 2010-02-16 Battelle Energy Alliance, Llc Firearm trigger assembly
US20060048430A1 (en) * 2004-09-09 2006-03-09 Crandall David L Forwardly movable assembly for a firearm
US20060048427A1 (en) * 2004-09-09 2006-03-09 Crandall David L Firearm trigger assembly
US20060254110A1 (en) * 2004-09-09 2006-11-16 Occhionero Michael P Trigger safety assembly
US7487612B2 (en) 2005-05-31 2009-02-10 Fn Herstal S.A. Grenade launcher
US8393107B2 (en) * 2008-08-26 2013-03-12 Adcor Industries, Inc. Firearm assembly including a first weapon and a second weapon selectively mounted to the first weapon
US9546836B2 (en) 2009-11-18 2017-01-17 Slide Fire Solutions Lp Slide stock for firearm with retractable lock pin
US20110168149A1 (en) * 2010-01-12 2011-07-14 Nadel Craig P Toy Gun Assembly
US8186337B2 (en) * 2010-01-12 2012-05-29 Nadel Craig P Toy gun assembly
US8967033B1 (en) * 2010-06-09 2015-03-03 J Patrick O'Brien Concentric cylinder gas-operated automatic firearm
US20150082978A1 (en) * 2010-06-09 2015-03-26 J. Patrick O'BRIEN Concentric cylinder gas-operated automatic firearm
US20140007763A1 (en) * 2012-07-03 2014-01-09 Slide Fire Solutions, Lp Forward-pressed finger rest for slide-action stock
US9612082B2 (en) 2012-11-15 2017-04-04 Slide Fire Solutions Lp Adjustable slide-action stock for firearms
US10088271B2 (en) * 2013-03-28 2018-10-02 Rheinmetall Waffe Munition Gmbh Firing device for firing cartridge ammunition
US10578396B2 (en) * 2014-12-01 2020-03-03 Wilcox Industries Corp. Modular grenade launcher system
US20160153744A1 (en) * 2014-12-01 2016-06-02 Wilcox Industries Corp. Modular grenade launcher system
US9612083B2 (en) 2014-12-31 2017-04-04 Slide Fire Solutions Lp Adjustable length slide-action rifle stock
US10113825B2 (en) * 2016-05-10 2018-10-30 Kudzu Arms, Llc Systems and methods for attaching a secondary firearm to a primary firearm
US10234222B2 (en) * 2016-08-09 2019-03-19 Gonzalo Couce Single 40 mm projectile launcher
US11047639B2 (en) 2017-02-08 2021-06-29 Black Site, Inc. Method and grip module for firearm modification using a firing control unit
US10119781B1 (en) 2017-05-08 2018-11-06 Wilcox Industries Corp. Grenade launcher and pivot mechanism for same
US20190212082A1 (en) * 2018-01-09 2019-07-11 William E. Masters Compact shotgun, multipurpose mount, and trigger assembly
US11187474B2 (en) * 2018-01-09 2021-11-30 William E. Masters Compact shotgun, multipurpose mount, and trigger assembly
US11035646B2 (en) 2018-12-21 2021-06-15 Wilcox Industries Corp. Grenade launcher with modular interface
US20230175801A1 (en) * 2021-12-02 2023-06-08 Berserk Sweden Ab Grenade launcher

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