US20160025448A1 - Modular buttstock assembly - Google Patents
Modular buttstock assembly Download PDFInfo
- Publication number
- US20160025448A1 US20160025448A1 US14/828,430 US201514828430A US2016025448A1 US 20160025448 A1 US20160025448 A1 US 20160025448A1 US 201514828430 A US201514828430 A US 201514828430A US 2016025448 A1 US2016025448 A1 US 2016025448A1
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- United States
- Prior art keywords
- buttstock
- modular
- receiver extension
- body module
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
- F41C23/00—Butts; Butt plates; Stocks
- F41C23/20—Butts; Butt plates; Mountings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
- F41C23/00—Butts; Butt plates; Stocks
- F41C23/04—Folding or telescopic stocks or stock parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
- F41C23/00—Butts; Butt plates; Stocks
- F41C23/22—Stocks having space for the storage of objects
Definitions
- the present disclosure relates to firearms. More particularly, it concerns a modular buttstock assembly that features enhanced modularity and structural integrity compared to known buttstock designs.
- firearms feature a component called a “buttstock.”
- Alternative terms for the same component include “stock,” “shoulder stock,” or “butt.”
- the buttstock which is connected to the firing mechanism and barrel, is typically the most rearward component of a firearm during normal use.
- the buttstock allows a user to brace the firearm against his or her shoulder and cheek prior to firing.
- the buttstock provides support by resting on the ground or other surface.
- firearms used by military or law enforcement personnel are sometimes used to apply blunt force to a person (e.g., a combatant) or object (e.g., a glass window). In such cases, the buttstock frequently serves as the striking surface.
- the lock pin is biased by a conventional wire spring upwards through a passage in the buttstock and into one of the depressions in the received extension tube.
- the head of the lockpin prevents the buttstock from sliding along the receiver extension tube.
- the user wishes to adjust the distance between the buttstock and the receiver, he or she retracts the lockpin from the depression by applying force to the lever protruding from the buttstock.
- Roy's design has remained the standard in adjustable buttstocks for many years, it suffers from a severe limitation. Many of the aforementioned applications for which buttstocks are used, such as delivering blunt force to an object or person, inflict mechanical stress on the lockpin, the lever, and the surrounding housing. Similar stresses are applied when firearms featuring traditional buttstocks impact the ground or other surface after being accidentally dropped. As a result, traditional buttstocks featuring Roy's design are overly susceptible to breakage. Customers in the firearm industry are increasingly demanding buttstocks with longer life expectancies. Alternatives to Roy's buttstock design have been attempted, such as the Magpul CTR® Carbine Stock offered by Magpul, Inc. of Boulder, Colo., but they have yet to offer any substantial advantage in structural integrity. Given such limitations, there is a persistent need in the firearm industry for a buttstock assembly that offers enhanced structural integrity.
- buttstocks are further limited when it comes to offering flexible storage functionality.
- users When regularly using firearms, users commonly need access to a number of accessory items, such as batteries (e.g., for weapon mounted lights, thermal imaging devices, laser sights, etc.), cleaning kits, or replacement parts.
- batteries e.g., for weapon mounted lights, thermal imaging devices, laser sights, etc.
- cleaning kits or replacement parts.
- Some attempts at offering convenient storage functionality have succeeded to a degree but ultimately constitute inflexible solutions because they rely on permanently integrated storage compartments.
- One such attempt was the Magpul ACSTM Carbine Stock offered by Magpul, Inc.
- Magpul ACSTM Carbine Stock offered by Magpul, Inc.
- the presence of a storage compartment while convenient and desirable in some situations, introduces additional components susceptible to breakage. As a result, users find a buttstock storage compartment desirable in some instances, and undesirable in others.
- a modular buttstock assembly that removably mounts to a receiver extension of a firearm includes a main body and a rear body.
- the main body includes a passage that mates with the receiver extension.
- the main body also includes a toggle assembly, no part of which is disposed within the rear body.
- the toggle assembly includes an actuating spring and a locking block.
- the actuating spring includes a biased position and an unbiased position.
- the locking block is coupled to the actuating spring.
- the rear body is removably coupled to the main body.
- FIG. 1 is an exploded perspective view of an exemplary modular buttstock assembly that removably mounts to a receiver extension of a firearm.
- FIG. 2 is a perspective view of an exemplary main body of a modular buttstock assembly that removably mounts to a receiver extension of a firearm.
- FIG. 3A is a partially exploded perspective view of an exemplary modular buttstock assembly that removably mounts to a receiver extension of a firearm.
- FIG. 3B is a rear view of an exemplary modular buttstock assembly that removably mounts to a receiver extension of a firearm.
- FIG. 4A is a sectional view of an exemplary modular buttstock assembly that removably mounts to a receiver extension of a firearm.
- FIG. 4B is a side view of an exemplary modular buttstock assembly that removably mounts to a receiver extension of a firearm.
- FIG. 5 is an exploded perspective view of an exemplary rear body of a modular buttstock assembly that removably mounts to a receiver extension of a firearm.
- FIG. 6 is an exploded perspective view of another exemplary rear body of a modular buttstock assembly that removably mounts to a receiver extension of a firearm.
- FIG. 7 is a partially exploded, inverted perspective view of an exemplary modular buttstock assembly that removably mounts to a receiver extension of a firearm.
- Embodiments of a modular buttstock modular that removably mounts to a receiver extension of a firearm are provided.
- the modular buttstock assembly features enhanced modularity and structural integrity compared to known buttstock assemblies.
- the modular buttstock assembly may feature an improved toggle assembly.
- the improved toggle assembly may include a multi-shaft locking block that is far superior in structural integrity to conventional lock pins and a bowed or arched actuating spring that is superior to conventional wire compression springs in structural integrity, elastic memory, wear resistance, and cost-efficiency.
- the modular buttstock assembly may also feature a rear body that may be removably coupled to a front body such that any number of swappable, modular rear bodies (e.g., those containing built-in storage compartments or accessories) may be employed to suit particular applications.
- a rear body that may be removably coupled to a front body such that any number of swappable, modular rear bodies (e.g., those containing built-in storage compartments or accessories) may be employed to suit particular applications.
- FIG. 1 is an exploded perspective view of an exemplary modular buttstock assembly 100 that removably mounts to a receiver extension 105 of a firearm.
- a modular buttstock assembly 100 that removably mounts to a receiver extension 105 of a firearm may include a main body 110 and one or more swappable, modular rear bodies 115 .
- Main body 110 may have a passage 120 that slideably mates with receiver extension 105 .
- Rear body 115 may be removably coupled to main body 110 .
- any number of modular rear bodies 115 may be quickly swapped in and out of modular buttstock assembly 100 to suit a variety of applications and/or missions.
- Modular buttstock assembly 100 may further include a toggle assembly 125 coupled to main body 110 .
- Toggle assembly 125 may include an actuating spring 130 , a locking block 135 , and an actuating lever 140 .
- Locking block 135 may be coupled to actuating spring 130 .
- Actuating spring 130 may have a biased position and an unbiased position. Further, as illustrated, actuating spring 130 may be a bowed or arched spring as opposed to a conventional wire compression spring.
- Actuating spring 130 may be made at least partially of a synthetic polymer, such as a glass-filled reinforced polymer (e.g., nylon). In other embodiments, actuating spring 130 may be made of metal or another suitably resilient material.
- Actuating lever 140 may be coupled to main body 110 by snap-fitting or other traditional coupling technique.
- Locking block 135 may include a plurality of shafts 145 aligned with a void (shown in FIG. 3A ) disposed in main body 110 .
- shafts 145 may be non-round shafts.
- FIG. 2 is a perspective view of an exemplary main body 110 of a modular buttstock assembly 100 that removably mounts to a receiver extension 105 of a firearm.
- main body 110 may be removably coupled to one or more swappable, modular rear bodies 115 , two examples of which are shown in FIG. 1 .
- the removable coupling of main body 110 to a rear body 115 may be facilitated by a fastener 150 .
- Fastener 150 may be a traditional threaded screw, a quick-detachable mechanism such as a press button with a male-female locking tab assembly or the like, or it may be any number of other suitable fasteners known in the art, such as a pin, bolt, clip, latch, retaining ring, or the like.
- Main body 110 may include a hole 155 into which a first end of fastener 150 may be inserted.
- FIG. 2 further shows toggle assembly 125 coupled to main body 110 , with actuating lever 140 visible and locking block 135 disposed within the interior of main body 110 .
- FIG. 3A is a partially exploded perspective view of an exemplary modular buttstock assembly 100 .
- fastener 150 is shown inserted directly into hole 155 of main body 110 for illustrative purposes, in practice fastener 150 passes through an internal passage in rear body 115 before entering hole 155 of main body 110 .
- the diameter of the internal passage may be smaller than a second end or head of fastener 150 such that fastener 150 may not pass entirely through the internal passage in rear body 115 .
- the second end or head of fastener 150 may be tightened against an internal surface of rear body 115 to securely yet removably couple rear body 115 to main body 110 .
- Fastener 150 may be accessed from the rear of rear body 115 through a hole 152 (also shown in FIG. 3B ).
- FIG. 3B is a rear view of an exemplary modular buttstock assembly 100 .
- fastener 150 may be accessed from the rear of modular buttstock assembly 100 through hole 152 .
- the user may access and release fastener 150 to uncouple rear body 115 from main body 110 .
- fastener 150 may be accessed from other locations throughout modular buttstock assembly 100 .
- FIG. 4A is a sectional view of an exemplary modular buttstock assembly 100 that removably mounts to a receiver extension 105 of a firearm.
- a receiver extension 105 is inserted into and mated with passage 120 of main body 110 .
- receiver extension 105 includes one or more downwardly oriented depressions 160 .
- receiver extension 105 contains six depressions 160 that allow the user to adjust the distance between modular buttstock assembly 100 and the receiver of the firearm.
- Main body 105 may contain a void 165 through which locking block 135 of toggle assembly 125 may protrude into passage 120 .
- Actuating spring 130 may be coupled to actuating lever 140 , while actuating lever 140 may in turn be coupled to main body 110 .
- Actuating spring 130 may further be coupled to locking block 135 , which in turn may be aligned with void 165 leading into passage 120 where receiver extension 105 resides.
- shafts 145 of locking block 135 may be forced upwardly by actuating spring 130 through void 165 and into depression 160 of receiver extension 105 .
- Actuating lever 140 may serve as the surface through which actuating spring 130 may be indirectly operated by a user when toggle assembly 125 is fully assembled and coupled to main body 110 .
- actuating lever 140 may serve as the manual mechanism through which the user ultimately adjusts the distance between modular buttstock assembly 100 and the receiver of the firearm.
- actuating lever 140 may feature a region with a more aggressive or pronounced surface texture compared to other parts of modular buttstock assembly 100 . The more aggressive texture may assist the user in quickly locating and firmly gripping actuating lever 140 .
- actuating lever 140 may be coupled to main body 110 through one or more hooks 167 disposed on actuating lever 140 and main body 110 (also shown in FIG. 1 ).
- Hooks 167 permit actuating lever 140 to be pressed inwardly into main body 110 such that actuating spring 130 may be forced into its unbiased position by an internal surface of actuating lever 140 . In such embodiments, when the user releases actuating lever 140 , thereby allowing actuating spring 130 to return to its biased position, hooks 167 catch actuating lever 140 and prevent it from being forced beyond its proper resting position by actuating spring 130 .
- actuating spring 130 may be shaped as a bowed or arched spring that is coupled to actuating lever 140 and locking block 135 .
- actuating spring 130 may be a different shape, so long as the shape allows actuating spring 130 to effectively function as a spring.
- actuating spring 130 may be made at least partially of a polymer, such as a glass-filled reinforced polymer (e.g. nylon).
- actuating spring 130 is far superior to conventional wire compression springs in structural integrity, elastic memory, wear resistance, and cost-efficiency.
- actuating spring 130 may be made of metal or any other suitably resilient material.
- the design of actuating spring 130 eliminates the need for the conventional two-part lock pin system featuring a separate member attached to a conventional wire compression spring. In doing so, the design of actuating spring 130 reduces manufacturing costs and complexity, while at the same time reducing the number of mechanical failure points.
- actuating spring 130 may serve as a biasing spring when coupled to actuating lever 140 , actuating spring 130 may assume either a spring-biased position and an unbiased position. In an embodiment, actuating spring 130 may be maintained in the biased position by upward forces applied by an interior wall of actuating lever 140 . In addition to providing just enough pressure to retain actuating spring 130 in the biased position, actuating lever 140 may also provide sufficient pressure to prevent locking block 135 and actuating spring 130 from rattling inside main body 110 when the user is moving. Such embodiments provide superior wear resistance and stealth capabilities compared to conventional designs featuring wire compression springs and lock pins.
- actuating spring 130 When actuating spring 130 is in the biased position, actuating spring 130 may force locking block 135 upwardly through void 165 and into depression 160 of receiver extension 105 .
- locking block 135 When locking block 135 is forced into depression 160 , one or more of shafts 145 may abuttedly engage an interior wall of depression 160 as shown in FIG. 3A . As a result, locking block 135 may obstruct receiver extension 105 from sliding within passage 120 of main body 110 .
- locking block 135 When actuating spring 130 is forced into the unbiased position by way of the user depressing a rear portion of actuating lever 140 , locking block 135 , by virtue of being coupled to actuating spring 130 , may be retracted from depression 160 of receiver extension 105 such that one or more of shafts 145 no longer abuttedly engage an interior wall of depression 160 . As a result, when actuating lever 140 is depressed and actuating spring 130 is forced into the unbiased position, locking block 135 no longer obstructs the ability of receiver extension 105 to slide within passage 120 of main body 110 .
- the user need only depress a portion of actuating lever 140 , slide modular buttstock assembly 100 along receiver extension 105 , and release actuating lever 140 when locking block 135 is aligned with a depression 160 .
- actuating spring 130 Upon releasing actuating lever 140 , the force indirectly applied by the user to actuating spring 130 to shift actuating spring 130 into its unbiased position is removed. As a result, actuating spring 130 returns to its biased position and once again holds modular buttstock assembly 100 securely in place along the length of receiver extension 105 when locking block is properly realigned with a depression 160 in receiver extension 105 . In some instances, the user may inadvertently release actuating lever 140 when locking block 135 is not perfectly aligned with a depression 160 in receiver extension 105 .
- the user can feel the resistance in actuating spring 130 and may make slight slide adjustments to the position of modular buttstock assembly 100 until locking block 135 becomes aligned with a depression 160 and actuating spring 130 , as a result of being maintained in the biased position by actuating lever 140 , automatically forces locking block 135 into depression 160 .
- the one or more shafts 145 of locking block 135 may include a center locking plunger 175 and a plurality of side flanges 180 .
- Locking plunger 175 may be thicker than side flanges 180 and may have a substantially flat upper surface to facilitate abuttedly engaging an interior wall of depression 160 in receiver extension 105 .
- the upper surface of locking plunger 175 may be textured or ribbed to facilitate friction between the upper surface and the interior wall of depression 160 .
- Side flanges 180 may likewise abuttedly engage the interior wall of depression 160 , thereby orienting lock plunger 175 , reducing the overall height of locking block 135 compared to convention lock pins, and transferring the load from receiver extension 105 to main body 110 .
- side flanges 180 effectively reduce the stress that is, in conventional lock pin designs, becomes concentrated on the lock pin and eventually causes the pin to break.
- locking plunger 175 and side flanges 180 may be a single-piece component (e.g. locking block 135 ) rather than multiple distinct pieces attached to one another. As a result, in such embodiments, locking block 135 may possess enhanced structural integrity. In other embodiments, however, locking block 135 may be multiple distinct pieces attached to one another.
- FIG. 4B is a side view of an exemplary modular buttstock assembly 100 that removably mounts to a receiver extension 105 of a firearm.
- main body 110 which may be removably coupled to one or more swappable, modular rear bodies 115 , is aligned with but not yet coupled to one such rear body 115 .
- main body 110 and rear body 115 may contain one or more corresponding rails and channels that slideably interface.
- Main body 110 and rear body 115 may be removably coupled by fastener 150 (also shown in and discussed with reference to FIGS. 2 , 3 A, and 3 B).
- rear body 115 When fastener 150 is removed, rear body 115 may be quickly swapped out for a different modular rear body 115 .
- removing fastener 150 or otherwise decoupling main body 110 from rear body 115 may necessitate the use of a tool.
- rear body 115 may include a storage compartment.
- the storage compartment may store the tool required for the decoupling process.
- the storage compartment may store a small hex key or other tool for quickly removing fastener 150 when the user desires to swap out modular rear body 115 ,
- FIG. 5 is an exploded perspective view of an exemplary rear body 115 of a modular buttstock assembly 100 .
- rear body 115 may include a forward region 185 having a recess 190 that slideably mates with a main body of a modular buttstock assembly, such as main body 110 shown in FIGS. 1-4B .
- Rear body 115 may further include a rear region 195 having a support surface 200 .
- support surface 200 may be a buttpad.
- buttpad 200 may serve as the rearward-most surface of the fully assembled firearm.
- buttstock 200 may allow a user to brace the firearm against his or her shoulder and cheek prior to firing or may serve as a striking surface for applying blunt force.
- Buttpad 200 may be coupled to rear region 195 of rear body 115 through well-known manufacturing processes such as over-molding. Persons of ordinary skill in the art will readily recognize that a wide variety of coupling mechanisms may be used with various embodiments disclosed herein.
- Forward region 185 of rear body 115 may include a built-in sling mounting point to which a sling may be mounted.
- the sling mounted point may include one or more brackets 205 that are secured to forward region 185 of rear body 115 by a plug 210 .
- one or more brackets 205 may be installed within corresponding grooves, slots, indents, or the like of forward region 185 .
- Plug 210 which may include a plurality of arms, may then be installed behind brackets 205 with respect to forward region 185 such that plug 210 exerts a forward force upon brackets 205 and helps to retain them securely in place within the corresponding grooves, slots, indents, or the like of forward region 185 .
- Buttpad 200 may then be coupled to rear region 195 before the entire rear region 195 is over-molded to add further structural rigidity to the foregoing assembly.
- buttpad 200 may include a first lip 207 that corresponds to a second lip 212 disposed at the rearward edge of rear region 195 . Lip 207 of buttpad 200 and lip 212 of rear region 195 may interlock to help retain buttpad in place against rear region 195 prior to overmolding.
- fastener 150 may be accessible from a hole 152 in buttpad 200 and may pass through an internal passage in rear body 115 before entering hole 155 of main body 110 .
- Hole 152 is further shown in FIG. 5 .
- the internal passage through which fastener 150 may be accessed may include the space between brackets 205 , the hole depicted in plug 210 , and hole 214 in forward region 185 of rear body 115 .
- Hole 214 may be have a smaller diameter than a head of fastener 150 such that the head of fastener 150 may not pass beyond hole 214 .
- fastener 150 may be tightened against the internal surface surrounding hole 214 to securely yet removably couple rear body 115 to main body 110 .
- FIG. 6 is an exploded perspective view of another exemplary rear body 115 of a modular buttstock assembly 100 .
- rear body 115 may include a forward region 185 having a recess 190 that slideably mates with a main body 110 of a modular buttstock assembly 100 , such as main body 110 shown in FIGS. 1-4B .
- Forward region 185 of rear body 115 may include a storage compartment 215 .
- storage compartment 215 may be a hollow space in the interior of rear body 115 .
- Rear body 115 may further include a rear region 195 having a support surface 200 .
- Support surface 200 may be a buttpad.
- buttpad 200 may be segmented into a first buttpad section 220 and a second buttpad section 225 .
- first buttpad section 220 may additionally be coupled to rear region 195 and may serve as a hinged panel or otherwise moveable barrier through which the user may access storage compartment 215 .
- first buttpad section 220 may include a hinge 230 and may be hingedly coupled to front region 185 of rear body 115 .
- Second buttpad section 225 may be fixed such that less than all of buttpad 200 provides access to storage compartment 215 .
- buttpad 200 may be a single unit akin to a traditional buttpad, except that the entire buttpad may be hingedly coupled to rear region 195 .
- Buttpad 200 may be retained in place by a pin 232 and a retaining clip 234 .
- Retaining clip 234 may be a hair clip or any other fastener suitable for retaining pin 232 in place.
- Rear region 195 of rear body 115 may include a hole 235 that corresponds to pin 232 in shape and diameter.
- Buttpad 200 may include a similarly shaped and sized hole 240 .
- hole 235 of rear region 195 and hole 240 of buttpad 200 may align with one another to form a continuous passage that accommodates the length of pin 232 .
- pin 232 is inserted into the continuous passage, buttpad 200 is retained securely in place against rear region 195 of rear body 115 .
- Retaining clip 234 may pressure fit over a corresponding groove disposed near a first end of pin 232 and into a groove disposed in rear region 195 .
- pin 232 when retaining clip 234 is coupled to rear region 195 over pin 232 , pin 232 is held securely in place within the continuous passage formed by hole 235 of rear region 195 and hole 240 of buttpad 200 .
- pin 232 may further include a second end with a notch that obstructively prevents pin 232 from passing completely through the continuous passage formed by hole 235 of rear region 195 and hole 240 of buttpad 200 .
- second buttpad section 225 may include a first lip that interlocks with a second lip disposed on an edge of rear region 195 , much like first lip 207 and second lip 212 shown in FIG. 5 .
- First buttpad section 220 may further include an angled edge 242 that corresponds to an correspondingly angled edge 244 of second buttpad section 225 .
- first buttpad section 220 may drive second buttpad section 220 upwards against lip 236 of rear region 195 .
- second buttpad section 220 assists in securing first buttpad section 220 to rear region 195 and in reducing the likelihood that second buttpad section 200 will rattle when modular buttstock assembly 100 is subject to motion.
- Forward region 185 may further include a cover 245 coupled to a bottom surface of rear body 115 .
- Cover 245 may serve to conceal hinge 230 from view when buttpad 200 is hingedly coupled to rear region 195 so as to give rear body 115 a sleek, low profile appearance.
- Cover 245 may also serve as a locking member that couples to hinge 230 and may shield hinge 230 from debris that might otherwise impede the ability of first buttpad section 220 to pivot around hinge 230 .
- Forward region 185 may further include a built-in sling mounting point to which a sling may be mounted.
- the sling mounted point may include one or more brackets 205 that are secured to forward region 185 of rear body 115 by a plug 210 .
- one or more brackets 205 may be installed within corresponding groove, slots, indents, or the like of forward region 185 .
- Plug 210 which may include a plurality of arms, may then be installed in between brackets 205 such that the arms exert outward pressure on brackets 205 and effectively pin them in place against a section of forward region 185 .
- Buttpad 200 may then be over-molded and/or hingedly coupled to rear region 195 .
- FIG. 7 is a partially exploded, inverted perspective view of an exemplary modular buttstock assembly 100 .
- cover 245 conceals hinge 230 of first buttpad section 220 .
- Cover 245 may be coupled to rear body 115 by a tab disposed on the internal surface of cover 245 (not shown) that interlocks with a spring member 255 .
- cover 245 may include a gap through which a bullet tip or other small object may be inserted to actuate spring member 255 and release cover 245 .
- Rear body 115 may also include one or more textured surfaces 250 . Textured surface 250 may aesthetically enhance rear body 115 , provide increased wear resistance, and provide a non-slip surface for situations in which the user may need to carry the firearm by rear body 115 .
- rear bodies 115 Although certain embodiments of rear bodies 115 have been described herein, persons of ordinary skill in the art will readily recognize that such disclosure is in no way limiting. On the contrary, in light of the disclosure provided herein, it should be readily apparent to persons of ordinary skill in the art that the present disclosure covers a wide variety of swappable, modular rear bodies 115 , such as those featuring a variety of storage compartments, access panels, or built-in accessories.
Abstract
A modular buttstock assembly that removably mounts to a receiver extension of a firearm may include a main body and a rear body. The main body may have a passage that mates with the receiver extension, while the rear body may be removably coupled to the main body such that any number of swappable, modular rear bodies may be coupled to the main body. The main body may include a toggle assembly with a actuating lever coupled to an bowed or ached actuating spring. The toggle assembly may also include a locking block with a plurality of shafts that distribute the load from the receiver extension to the main body rather than concentrating mechanical stress on a single lock pin.
Description
- The present application is a continuation and claims the priority benefit of U.S. application Ser. No. 14/256,904 filed Apr. 18, 2014, entitled “Modular Buttstock Assembly,” and set to issue as U.S. Pat. No. 9,109,855 on Aug. 18, 2015, the disclosure of which is hereby incorporated by reference in its entirety.
- 1. Field of the Disclosure
- The present disclosure relates to firearms. More particularly, it concerns a modular buttstock assembly that features enhanced modularity and structural integrity compared to known buttstock designs.
- 2. Description of the Related Art
- Many firearms feature a component called a “buttstock.” Alternative terms for the same component include “stock,” “shoulder stock,” or “butt.” The buttstock, which is connected to the firing mechanism and barrel, is typically the most rearward component of a firearm during normal use. The buttstock allows a user to brace the firearm against his or her shoulder and cheek prior to firing. In some applications, such as when a user is firing from a prone position, the buttstock provides support by resting on the ground or other surface. Further, although primarily used for firing ammunition, firearms used by military or law enforcement personnel are sometimes used to apply blunt force to a person (e.g., a combatant) or object (e.g., a glass window). In such cases, the buttstock frequently serves as the striking surface.
- Many modern buttstocks are considered “collapsible” or “adjustable” in the sense that a user can alter the distance between the buttstock and the receiver to accommodate his or her needs (e.g., arm length). Inventor Robert Roy introduced the first adjustable buttstock assembly in 1966. Roy's assembly, which still stands as the prevailing adjustable buttstock design, was designed to fit a standard sized receiver extension produced by Colt's Manufacturing Company, LLC of Hartford, Conn. Roy's design utilizes a receiver extension tube containing depressions. The buttstock slides over the receiver extension tube. The bottom of the buttstock contains a lever connected to a lock pin. The lock pin is biased by a conventional wire spring upwards through a passage in the buttstock and into one of the depressions in the received extension tube. When biased into one of the depressions by the spring, the head of the lockpin prevents the buttstock from sliding along the receiver extension tube. When the user wishes to adjust the distance between the buttstock and the receiver, he or she retracts the lockpin from the depression by applying force to the lever protruding from the buttstock. For more details on Roy's design, see U.S. Pat. No. 3,348,328.
- Although Roy's design has remained the standard in adjustable buttstocks for many years, it suffers from a severe limitation. Many of the aforementioned applications for which buttstocks are used, such as delivering blunt force to an object or person, inflict mechanical stress on the lockpin, the lever, and the surrounding housing. Similar stresses are applied when firearms featuring traditional buttstocks impact the ground or other surface after being accidentally dropped. As a result, traditional buttstocks featuring Roy's design are overly susceptible to breakage. Customers in the firearm industry are increasingly demanding buttstocks with longer life expectancies. Alternatives to Roy's buttstock design have been attempted, such as the Magpul CTR® Carbine Stock offered by Magpul, Inc. of Boulder, Colo., but they have yet to offer any substantial advantage in structural integrity. Given such limitations, there is a persistent need in the firearm industry for a buttstock assembly that offers enhanced structural integrity.
- Known buttstocks are further limited when it comes to offering flexible storage functionality. When regularly using firearms, users commonly need access to a number of accessory items, such as batteries (e.g., for weapon mounted lights, thermal imaging devices, laser sights, etc.), cleaning kits, or replacement parts. Some attempts at offering convenient storage functionality have succeeded to a degree but ultimately constitute inflexible solutions because they rely on permanently integrated storage compartments. One such attempt was the Magpul ACS™ Carbine Stock offered by Magpul, Inc. The presence of a storage compartment, while convenient and desirable in some situations, introduces additional components susceptible to breakage. As a result, users find a buttstock storage compartment desirable in some instances, and undesirable in others. Because existing buttstock offerings are inflexible, users must expend funds purchasing more than one buttstock and then must find sufficient space to store them. Further, users must endure the time-consuming task of swapping out the entire buttstock when transitioning from a scenario in which a buttstock storage compartment is desirable to a scenario in which enhanced mechanical strength is a greater priority, and vice versa. Accordingly, there is a need in the firearm industry for a modular buttstock assembly that offers flexible functionality.
- An embodiment of a modular buttstock assembly that removably mounts to a receiver extension of a firearm is claimed. In one claimed embodiment, a modular buttstock assembly that removably mounts to a receiver extension of a firearm includes a main body and a rear body. The main body includes a passage that mates with the receiver extension. The main body also includes a toggle assembly, no part of which is disposed within the rear body. The toggle assembly includes an actuating spring and a locking block. The actuating spring includes a biased position and an unbiased position. The locking block is coupled to the actuating spring. The rear body is removably coupled to the main body.
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FIG. 1 is an exploded perspective view of an exemplary modular buttstock assembly that removably mounts to a receiver extension of a firearm. -
FIG. 2 is a perspective view of an exemplary main body of a modular buttstock assembly that removably mounts to a receiver extension of a firearm. -
FIG. 3A is a partially exploded perspective view of an exemplary modular buttstock assembly that removably mounts to a receiver extension of a firearm. -
FIG. 3B is a rear view of an exemplary modular buttstock assembly that removably mounts to a receiver extension of a firearm. -
FIG. 4A is a sectional view of an exemplary modular buttstock assembly that removably mounts to a receiver extension of a firearm. -
FIG. 4B is a side view of an exemplary modular buttstock assembly that removably mounts to a receiver extension of a firearm. -
FIG. 5 is an exploded perspective view of an exemplary rear body of a modular buttstock assembly that removably mounts to a receiver extension of a firearm. -
FIG. 6 is an exploded perspective view of another exemplary rear body of a modular buttstock assembly that removably mounts to a receiver extension of a firearm. -
FIG. 7 is a partially exploded, inverted perspective view of an exemplary modular buttstock assembly that removably mounts to a receiver extension of a firearm. - Embodiments of a modular buttstock modular that removably mounts to a receiver extension of a firearm are provided. The modular buttstock assembly features enhanced modularity and structural integrity compared to known buttstock assemblies. Namely, in various embodiments, the modular buttstock assembly may feature an improved toggle assembly. The improved toggle assembly may include a multi-shaft locking block that is far superior in structural integrity to conventional lock pins and a bowed or arched actuating spring that is superior to conventional wire compression springs in structural integrity, elastic memory, wear resistance, and cost-efficiency. In various embodiments, the modular buttstock assembly may also feature a rear body that may be removably coupled to a front body such that any number of swappable, modular rear bodies (e.g., those containing built-in storage compartments or accessories) may be employed to suit particular applications.
- Although certain embodiments of a modular buttstock assembly are discussed herein, it should be understood that such embodiments are illustrative only and in no way limit the scope of the present disclosure. Persons of ordinary skill in the art will readily recognize that the present disclosure suggests many other possible embodiments in addition to those expressly described herein.
-
FIG. 1 is an exploded perspective view of an exemplary modular buttstock assembly 100 that removably mounts to areceiver extension 105 of a firearm. As shown inFIG. 1 , in one embodiment, a modular buttstock assembly 100 that removably mounts to areceiver extension 105 of a firearm may include amain body 110 and one or more swappable, modularrear bodies 115.Main body 110 may have apassage 120 that slideably mates withreceiver extension 105.Rear body 115 may be removably coupled tomain body 110. As a result, any number of modularrear bodies 115 may be quickly swapped in and out of modular buttstock assembly 100 to suit a variety of applications and/or missions. Modular buttstock assembly 100 may further include atoggle assembly 125 coupled tomain body 110.Toggle assembly 125 may include anactuating spring 130, alocking block 135, and anactuating lever 140. Lockingblock 135 may be coupled to actuatingspring 130. Actuatingspring 130 may have a biased position and an unbiased position. Further, as illustrated, actuatingspring 130 may be a bowed or arched spring as opposed to a conventional wire compression spring. Actuatingspring 130 may be made at least partially of a synthetic polymer, such as a glass-filled reinforced polymer (e.g., nylon). In other embodiments, actuatingspring 130 may be made of metal or another suitably resilient material.Actuating lever 140 may be coupled tomain body 110 by snap-fitting or other traditional coupling technique. Lockingblock 135 may include a plurality ofshafts 145 aligned with a void (shown inFIG. 3A ) disposed inmain body 110. In some embodiments,shafts 145 may be non-round shafts. -
FIG. 2 is a perspective view of an exemplarymain body 110 of a modular buttstock assembly 100 that removably mounts to areceiver extension 105 of a firearm. As previously noted,main body 110 may be removably coupled to one or more swappable, modularrear bodies 115, two examples of which are shown inFIG. 1 . As shown inFIG. 2 , the removable coupling ofmain body 110 to arear body 115 may be facilitated by afastener 150.Fastener 150 may be a traditional threaded screw, a quick-detachable mechanism such as a press button with a male-female locking tab assembly or the like, or it may be any number of other suitable fasteners known in the art, such as a pin, bolt, clip, latch, retaining ring, or the like.Main body 110 may include ahole 155 into which a first end offastener 150 may be inserted.FIG. 2 further showstoggle assembly 125 coupled tomain body 110, with actuatinglever 140 visible and lockingblock 135 disposed within the interior ofmain body 110. -
FIG. 3A is a partially exploded perspective view of an exemplary modular buttstock assembly 100. Notably, although inFIG. 3A fastener 150 is shown inserted directly intohole 155 ofmain body 110 for illustrative purposes, inpractice fastener 150 passes through an internal passage inrear body 115 before enteringhole 155 ofmain body 110. The diameter of the internal passage may be smaller than a second end or head offastener 150 such thatfastener 150 may not pass entirely through the internal passage inrear body 115. As a result, the second end or head offastener 150 may be tightened against an internal surface ofrear body 115 to securely yet removably couplerear body 115 tomain body 110. As previously noted, in other embodiments a variety of other coupling mechanisms may be used.Fastener 150 may be accessed from the rear ofrear body 115 through a hole 152 (also shown inFIG. 3B ). -
FIG. 3B is a rear view of an exemplary modular buttstock assembly 100. As shown inFIG. 3B , in one embodiment,fastener 150 may be accessed from the rear of modular buttstock assembly 100 throughhole 152. Using a tool, the user may access andrelease fastener 150 to uncouplerear body 115 frommain body 110. In other embodiments,fastener 150 may be accessed from other locations throughout modular buttstock assembly 100. -
FIG. 4A is a sectional view of an exemplary modular buttstock assembly 100 that removably mounts to areceiver extension 105 of a firearm. As shown inFIG. 4A , areceiver extension 105 is inserted into and mated withpassage 120 ofmain body 110. As is common with known receiver extensions,receiver extension 105 includes one or more downwardly orienteddepressions 160. In the example shown inFIG. 4A ,receiver extension 105 contains sixdepressions 160 that allow the user to adjust the distance between modular buttstock assembly 100 and the receiver of the firearm.Main body 105 may contain a void 165 through which lockingblock 135 oftoggle assembly 125 may protrude intopassage 120. Actuatingspring 130 may be coupled to actuatinglever 140, while actuatinglever 140 may in turn be coupled tomain body 110. Actuatingspring 130 may further be coupled to lockingblock 135, which in turn may be aligned withvoid 165 leading intopassage 120 wherereceiver extension 105 resides. As discussed further below, when lockingblock 135 is aligned withvoid 165 leading intopassage 120,shafts 145 of lockingblock 135 may be forced upwardly by actuatingspring 130 throughvoid 165 and intodepression 160 ofreceiver extension 105. -
Actuating lever 140 may serve as the surface through which actuatingspring 130 may be indirectly operated by a user whentoggle assembly 125 is fully assembled and coupled tomain body 110. As such,actuating lever 140 may serve as the manual mechanism through which the user ultimately adjusts the distance between modular buttstock assembly 100 and the receiver of the firearm. To that end, actuatinglever 140 may feature a region with a more aggressive or pronounced surface texture compared to other parts of modular buttstock assembly 100. The more aggressive texture may assist the user in quickly locating and firmly grippingactuating lever 140. In some embodiments, actuatinglever 140 may be coupled tomain body 110 through one ormore hooks 167 disposed on actuatinglever 140 and main body 110 (also shown inFIG. 1 ).Hooks 167permit actuating lever 140 to be pressed inwardly intomain body 110 such thatactuating spring 130 may be forced into its unbiased position by an internal surface of actuatinglever 140. In such embodiments, when the userreleases actuating lever 140, thereby allowingactuating spring 130 to return to its biased position, hooks 167catch actuating lever 140 and prevent it from being forced beyond its proper resting position by actuatingspring 130. - As shown in
FIG. 4A , actuatingspring 130 may be shaped as a bowed or arched spring that is coupled to actuatinglever 140 and lockingblock 135. In other embodiments, actuatingspring 130 may be a different shape, so long as the shape allows actuatingspring 130 to effectively function as a spring. In some embodiments, actuatingspring 130 may be made at least partially of a polymer, such as a glass-filled reinforced polymer (e.g. nylon). In embodiments in whichactuating spring 130 features a bowed or arched shape and is made of at least partially of a polymer, actuatingspring 130 is far superior to conventional wire compression springs in structural integrity, elastic memory, wear resistance, and cost-efficiency. In other embodiments, actuatingspring 130 may be made of metal or any other suitably resilient material. By simultaneously serving as both the spring thatbiases locking block 135 into an engaged position withreceiver extension 105 and the member through which force is translated to actuatingspring 130 by actuatinglever 140, the design ofactuating spring 130 eliminates the need for the conventional two-part lock pin system featuring a separate member attached to a conventional wire compression spring. In doing so, the design ofactuating spring 130 reduces manufacturing costs and complexity, while at the same time reducing the number of mechanical failure points. - Because actuating
spring 130 may serve as a biasing spring when coupled to actuatinglever 140, actuatingspring 130 may assume either a spring-biased position and an unbiased position. In an embodiment, actuatingspring 130 may be maintained in the biased position by upward forces applied by an interior wall of actuatinglever 140. In addition to providing just enough pressure to retainactuating spring 130 in the biased position, actuatinglever 140 may also provide sufficient pressure to prevent lockingblock 135 andactuating spring 130 from rattling insidemain body 110 when the user is moving. Such embodiments provide superior wear resistance and stealth capabilities compared to conventional designs featuring wire compression springs and lock pins. - When actuating
spring 130 is in the biased position, actuatingspring 130 may force lockingblock 135 upwardly throughvoid 165 and intodepression 160 ofreceiver extension 105. When lockingblock 135 is forced intodepression 160, one or more ofshafts 145 may abuttedly engage an interior wall ofdepression 160 as shown inFIG. 3A . As a result, lockingblock 135 may obstructreceiver extension 105 from sliding withinpassage 120 ofmain body 110. When actuatingspring 130 is forced into the unbiased position by way of the user depressing a rear portion ofactuating lever 140, lockingblock 135, by virtue of being coupled to actuatingspring 130, may be retracted fromdepression 160 ofreceiver extension 105 such that one or more ofshafts 145 no longer abuttedly engage an interior wall ofdepression 160. As a result, when actuatinglever 140 is depressed andactuating spring 130 is forced into the unbiased position, lockingblock 135 no longer obstructs the ability ofreceiver extension 105 to slide withinpassage 120 ofmain body 110. Thus, in operation, to adjust the distance between modular buttstock assembly 100 and the receiver of the firearm, the user need only depress a portion ofactuating lever 140, slide modular buttstock assembly 100 alongreceiver extension 105, and release actuatinglever 140 when lockingblock 135 is aligned with adepression 160. - Upon releasing
actuating lever 140, the force indirectly applied by the user toactuating spring 130 to shiftactuating spring 130 into its unbiased position is removed. As a result, actuatingspring 130 returns to its biased position and once again holds modular buttstock assembly 100 securely in place along the length ofreceiver extension 105 when locking block is properly realigned with adepression 160 inreceiver extension 105. In some instances, the user may inadvertently release actuatinglever 140 when lockingblock 135 is not perfectly aligned with adepression 160 inreceiver extension 105. In such cases, the user can feel the resistance inactuating spring 130 and may make slight slide adjustments to the position of modular buttstock assembly 100 until lockingblock 135 becomes aligned with adepression 160 andactuating spring 130, as a result of being maintained in the biased position by actuatinglever 140, automatically forces lockingblock 135 intodepression 160. - Referring back to
FIG. 1 , in an embodiment, the one ormore shafts 145 of lockingblock 135 may include acenter locking plunger 175 and a plurality ofside flanges 180. Lockingplunger 175 may be thicker thanside flanges 180 and may have a substantially flat upper surface to facilitate abuttedly engaging an interior wall ofdepression 160 inreceiver extension 105. Alternatively, the upper surface of lockingplunger 175 may be textured or ribbed to facilitate friction between the upper surface and the interior wall ofdepression 160.Side flanges 180 may likewise abuttedly engage the interior wall ofdepression 160, thereby orientinglock plunger 175, reducing the overall height of lockingblock 135 compared to convention lock pins, and transferring the load fromreceiver extension 105 tomain body 110. By transferring the load fromreceiver extension 105 tomain body 110,side flanges 180 effectively reduce the stress that is, in conventional lock pin designs, becomes concentrated on the lock pin and eventually causes the pin to break. In some embodiments, like that shown inFIG. 1 , lockingplunger 175 andside flanges 180 may be a single-piece component (e.g. locking block 135) rather than multiple distinct pieces attached to one another. As a result, in such embodiments, lockingblock 135 may possess enhanced structural integrity. In other embodiments, however, lockingblock 135 may be multiple distinct pieces attached to one another. -
FIG. 4B is a side view of an exemplary modular buttstock assembly 100 that removably mounts to areceiver extension 105 of a firearm. As shown inFIG. 3B ,main body 110, which may be removably coupled to one or more swappable, modularrear bodies 115, is aligned with but not yet coupled to one suchrear body 115. As likewise shown inFIG. 1 ,main body 110 andrear body 115 may contain one or more corresponding rails and channels that slideably interface.Main body 110 andrear body 115 may be removably coupled by fastener 150 (also shown in and discussed with reference toFIGS. 2 , 3A, and 3B). Whenfastener 150 is removed,rear body 115 may be quickly swapped out for a different modularrear body 115. In some embodiments, removingfastener 150 or otherwise decouplingmain body 110 fromrear body 115 may necessitate the use of a tool. As discussed below in further detail, in some embodimentsrear body 115 may include a storage compartment. Among other items and accessories, the storage compartment may store the tool required for the decoupling process. For example, the storage compartment may store a small hex key or other tool for quickly removingfastener 150 when the user desires to swap out modularrear body 115, -
FIG. 5 is an exploded perspective view of an exemplaryrear body 115 of a modular buttstock assembly 100. As shown inFIG. 5 ,rear body 115 may include aforward region 185 having arecess 190 that slideably mates with a main body of a modular buttstock assembly, such asmain body 110 shown inFIGS. 1-4B . -
Rear body 115 may further include arear region 195 having asupport surface 200. In some embodiments,support surface 200 may be a buttpad. Whenrear body 115 is coupled to amain body 110 of a modular buttstock assembly 100, which itself is coupled to areceiver extension 105 of a firearm,buttpad 200 may serve as the rearward-most surface of the fully assembled firearm. As a result, among other uses,buttstock 200 may allow a user to brace the firearm against his or her shoulder and cheek prior to firing or may serve as a striking surface for applying blunt force.Buttpad 200 may be coupled torear region 195 ofrear body 115 through well-known manufacturing processes such as over-molding. Persons of ordinary skill in the art will readily recognize that a wide variety of coupling mechanisms may be used with various embodiments disclosed herein. -
Forward region 185 ofrear body 115 may include a built-in sling mounting point to which a sling may be mounted. The sling mounted point may include one ormore brackets 205 that are secured to forwardregion 185 ofrear body 115 by aplug 210. In an embodiment, one ormore brackets 205 may be installed within corresponding grooves, slots, indents, or the like offorward region 185. Plug 210, which may include a plurality of arms, may then be installed behindbrackets 205 with respect toforward region 185 such thatplug 210 exerts a forward force uponbrackets 205 and helps to retain them securely in place within the corresponding grooves, slots, indents, or the like offorward region 185.Buttpad 200 may then be coupled torear region 195 before the entirerear region 195 is over-molded to add further structural rigidity to the foregoing assembly. In some embodiments,buttpad 200 may include afirst lip 207 that corresponds to asecond lip 212 disposed at the rearward edge ofrear region 195.Lip 207 ofbuttpad 200 andlip 212 ofrear region 195 may interlock to help retain buttpad in place againstrear region 195 prior to overmolding. - As discussed with respect to
FIGS. 4A and 4B , in someembodiments fastener 150 may be accessible from ahole 152 inbuttpad 200 and may pass through an internal passage inrear body 115 before enteringhole 155 ofmain body 110.Hole 152 is further shown inFIG. 5 . Moreover, the internal passage through whichfastener 150 may be accessed may include the space betweenbrackets 205, the hole depicted inplug 210, andhole 214 inforward region 185 ofrear body 115.Hole 214 may be have a smaller diameter than a head offastener 150 such that the head offastener 150 may not pass beyondhole 214. As a result,fastener 150 may be tightened against the internalsurface surrounding hole 214 to securely yet removably couplerear body 115 tomain body 110. -
FIG. 6 is an exploded perspective view of another exemplaryrear body 115 of a modular buttstock assembly 100. As shown inFIG. 5 ,rear body 115 may include aforward region 185 having arecess 190 that slideably mates with amain body 110 of a modular buttstock assembly 100, such asmain body 110 shown inFIGS. 1-4B .Forward region 185 ofrear body 115 may include astorage compartment 215. In an embodiment,storage compartment 215 may be a hollow space in the interior ofrear body 115.Rear body 115 may further include arear region 195 having asupport surface 200.Support surface 200 may be a buttpad. In some embodiments,buttpad 200 may be segmented into afirst buttpad section 220 and asecond buttpad section 225. In addition to serving normal functions associated with a buttpad,first buttpad section 220 may additionally be coupled torear region 195 and may serve as a hinged panel or otherwise moveable barrier through which the user may accessstorage compartment 215. For instance, in the embodiment shown inFIG. 5 ,first buttpad section 220 may include ahinge 230 and may be hingedly coupled tofront region 185 ofrear body 115. -
Second buttpad section 225 may be fixed such that less than all ofbuttpad 200 provides access tostorage compartment 215. Alternatively,buttpad 200 may be a single unit akin to a traditional buttpad, except that the entire buttpad may be hingedly coupled torear region 195.Buttpad 200 may be retained in place by apin 232 and aretaining clip 234. Retainingclip 234 may be a hair clip or any other fastener suitable for retainingpin 232 in place.Rear region 195 ofrear body 115 may include ahole 235 that corresponds to pin 232 in shape and diameter.Buttpad 200 may include a similarly shaped andsized hole 240. When buttpad 200 is positioned flush against a rearmost surface ofrear region 195,hole 235 ofrear region 195 andhole 240 ofbuttpad 200 may align with one another to form a continuous passage that accommodates the length ofpin 232. Whenpin 232 is inserted into the continuous passage,buttpad 200 is retained securely in place againstrear region 195 ofrear body 115. Retainingclip 234 may pressure fit over a corresponding groove disposed near a first end ofpin 232 and into a groove disposed inrear region 195. In such embodiments, when retainingclip 234 is coupled torear region 195 overpin 232,pin 232 is held securely in place within the continuous passage formed byhole 235 ofrear region 195 andhole 240 ofbuttpad 200. In addition to the groove corresponding to retainingclip 234,pin 232 may further include a second end with a notch that obstructively preventspin 232 from passing completely through the continuous passage formed byhole 235 ofrear region 195 andhole 240 ofbuttpad 200. - In some embodiments,
second buttpad section 225 may include a first lip that interlocks with a second lip disposed on an edge ofrear region 195, much likefirst lip 207 andsecond lip 212 shown inFIG. 5 . In other embodiments, a variety of other mating mechanisms may be used, such as corresponding rings or snap-fit components.First buttpad section 220 may further include an angled edge 242 that corresponds to an correspondingly angled edge 244 ofsecond buttpad section 225. As a result, when coupled torear region 195,first buttpad section 220 may drivesecond buttpad section 220 upwards against lip 236 ofrear region 195. In doing so,second buttpad section 220 assists in securingfirst buttpad section 220 torear region 195 and in reducing the likelihood thatsecond buttpad section 200 will rattle when modular buttstock assembly 100 is subject to motion. -
Forward region 185 may further include acover 245 coupled to a bottom surface ofrear body 115. Cover 245 may serve to concealhinge 230 from view whenbuttpad 200 is hingedly coupled torear region 195 so as to give rear body 115 a sleek, low profile appearance. Cover 245 may also serve as a locking member that couples to hinge 230 and may shield hinge 230 from debris that might otherwise impede the ability offirst buttpad section 220 to pivot aroundhinge 230.Forward region 185 may further include a built-in sling mounting point to which a sling may be mounted. The sling mounted point may include one ormore brackets 205 that are secured to forwardregion 185 ofrear body 115 by aplug 210. In an embodiment, one ormore brackets 205 may be installed within corresponding groove, slots, indents, or the like offorward region 185. Plug 210, which may include a plurality of arms, may then be installed in betweenbrackets 205 such that the arms exert outward pressure onbrackets 205 and effectively pin them in place against a section offorward region 185.Buttpad 200 may then be over-molded and/or hingedly coupled torear region 195. -
FIG. 7 is a partially exploded, inverted perspective view of an exemplary modular buttstock assembly 100. As shown inFIG. 6 , cover 245 conceals hinge 230 offirst buttpad section 220. Cover 245 may be coupled torear body 115 by a tab disposed on the internal surface of cover 245 (not shown) that interlocks with aspring member 255. In some embodiments, cover 245 may include a gap through which a bullet tip or other small object may be inserted to actuatespring member 255 andrelease cover 245.Rear body 115 may also include one or moretextured surfaces 250.Textured surface 250 may aesthetically enhancerear body 115, provide increased wear resistance, and provide a non-slip surface for situations in which the user may need to carry the firearm byrear body 115. - Although certain embodiments of
rear bodies 115 have been described herein, persons of ordinary skill in the art will readily recognize that such disclosure is in no way limiting. On the contrary, in light of the disclosure provided herein, it should be readily apparent to persons of ordinary skill in the art that the present disclosure covers a wide variety of swappable, modularrear bodies 115, such as those featuring a variety of storage compartments, access panels, or built-in accessories. - The above description is illustrative and not restrictive. Many variations of the invention will become apparent to those of skill in the art upon review of this disclosure. While the present invention has been described in connection with a variety of embodiments, these descriptions are not intended to limit the scope of the invention to the particular forms set forth herein. To the contrary, the present descriptions are intended to cover alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by the appended claim and otherwise appreciated by one of ordinary skill in the art.
Claims (21)
1. (canceled)
2. A modular buttstock assembly, comprising:
a first buttstock body module that removably mounts to a receiver extension of a firearm at a first end of the first buttstock body module, the first buttstock body module including a toggle assembly that toggles the first buttstock body module between a locked position and an unlocked position with respect to the receiver extension, wherein the toggle assembly includes:
an actuating spring,
an actuating lever that engages the actuating spring when the actuating lever is depressed, and
a locking member coupled to the actuating spring, wherein the locking member engages the receiver extension to produce the locked position when the actuating lever is not depressed and disengages the receiver extension to produce the unlocked position when the actuating lever is depressed; and
a second buttstock body module removably coupled to a second end of the first buttstock body module.
3. The modular buttstock assembly of claim 2 , wherein the actuating spring is made at least partially of a polymer.
4. The modular buttstock assembly of claim 2 , wherein the actuating spring is a bowed actuating spring.
5. The modular buttstock assembly of claim 4 , wherein the bowed actuating spring includes at least one hook-shaped region.
6. The modular buttstock assembly of claim 2 , wherein the locking member includes a plurality of shafts.
7. The modular buttstock assembly of claim 6 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least one of the plurality of shafts of the locking member passing through a void in the first buttstock body module.
8. The modular buttstock assembly of claim 7 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least one of the plurality of shafts of the locking member mating with a void disposed in the receiver extension.
9. The modular buttstock assembly of claim 6 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least three of the plurality of shafts of the locking member passing through a void in the first buttstock body module.
10. The modular buttstock assembly of claim 7 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least one of the plurality of shafts of the locking member mating with a void disposed in the receiver extension and at least two of the other shafts each abuttedly engaging an outer surface of the receiver extension.
11. A modular buttstock system, the system comprising:
a first buttstock body module that removably mounts to a receiver extension of a firearm at a first end of the first buttstock body module, the first buttstock body module including a toggle assembly that toggles the first buttstock body module between a locked position and an unlocked position with respect to the receiver extension, wherein the toggle assembly includes:
a bowed actuating spring,
an actuating lever that engages the bowed actuating spring when the actuating lever is depressed, and
a locking member coupled to the bowed actuating spring, wherein the locking member engages the receiver extension to produce the locked position when the actuating lever is not depressed and disengages the receiver extension to produce the unlocked position when the actuating lever is depressed;
a second buttstock body module that removably couples to a second end of the first buttstock body module; and
a third buttstock body module that removably couples to the second end of the first buttstock body module when the second buttstock body module is not coupled to the second end, the third buttstock body module including an inner storage compartment.
12. The modular buttstock system of claim 11 , wherein the actuating spring is made at least partially of a polymer.
13. The modular buttstock system of claim 11 , wherein the actuating spring is a bowed actuating spring.
14. The modular buttstock system of claim 13 , wherein the bowed actuating spring includes at least one hook-shaped region.
15. The modular buttstock system of claim 11 , wherein the locking member includes a plurality of shafts.
16. The modular buttstock system of claim 15 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least one of the plurality of shafts of the locking member passing through a void in the first buttstock body module.
17. The modular buttstock system of claim 16 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least one of the plurality of shafts of the locking member mating with a void disposed in the receiver extension.
18. The modular buttstock system of claim 15 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least three of the plurality of shafts of the locking member passing through a void in the first buttstock body module.
19. The modular buttstock system of claim 16 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least one of the plurality of shafts of the locking member mating with a void disposed in the receiver extension and at least two of the other shafts each abuttedly engaging an outer surface of the receiver extension.
20. The modular buttstock system of claim 11 , wherein the inner storage compartment of the third buttstock body module is accessible by a hinged panel disposed at a rear surface of the third buttstock body module.
21. The modular buttstock system of claim 20 , wherein at least a portion of the hinged panel disposed at the rear surface of the third buttstock body module is covered by a buttpad.
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Cited By (10)
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US10156421B2 (en) | 2016-07-01 | 2018-12-18 | Vista Outdoor Operations Llc | Adjustable length bi-directional folding stock for firearm |
USD828476S1 (en) | 2016-12-08 | 2018-09-11 | Vista Outdoor Operations Llc | Firearm stock |
US20190049213A1 (en) * | 2017-08-09 | 2019-02-14 | J&E Machine Tech, Inc. | Firearm stock with locking mechanism |
US10458746B2 (en) * | 2017-08-21 | 2019-10-29 | Sig Sauer, Inc. | Adjustable cheek riser |
US10036602B1 (en) | 2017-11-28 | 2018-07-31 | Magpul Industries Corp. | Interchangeable plates for a firearm |
US10386138B2 (en) | 2017-11-28 | 2019-08-20 | Magpul Industries Corp. | Interchangeable plates for a firearm |
US10895425B2 (en) | 2017-11-28 | 2021-01-19 | Magpul Industries Corp. | Interchangeable plates for a firearm |
USD868924S1 (en) | 2018-01-10 | 2019-12-03 | Magpul Industries Corp. | Firearm stock |
US11365952B2 (en) | 2019-08-16 | 2022-06-21 | Sig Sauer, Inc. | Firearm stock with adjustable butt plate and locking comb assembly |
USD1005437S1 (en) * | 2020-08-04 | 2023-11-21 | Reptilia IP LLC | Firearm stock |
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Legal Events
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Owner name: BRAVO COMPANY USA, INC., WISCONSIN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KINCEL, ERIC STEPHEN;REEL/FRAME:036372/0381 Effective date: 20150414 |
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Owner name: BRAVO COMPANY MANUFACTURING, INC., WISCONSIN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BRAVO COMPANY USA, INC.;REEL/FRAME:044653/0184 Effective date: 20180103 |
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