US20140165438A1 - Matched muzzle brake-weight system for firearms - Google Patents

Matched muzzle brake-weight system for firearms Download PDF

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Publication number
US20140165438A1
US20140165438A1 US13/708,735 US201213708735A US2014165438A1 US 20140165438 A1 US20140165438 A1 US 20140165438A1 US 201213708735 A US201213708735 A US 201213708735A US 2014165438 A1 US2014165438 A1 US 2014165438A1
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US
United States
Prior art keywords
muzzle
weight
brake
muzzle brake
barrel
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
Application number
US13/708,735
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English (en)
Inventor
Todd Wilkinson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sturm Ruger and Co Inc
Original Assignee
Sturm Ruger and Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sturm Ruger and Co Inc filed Critical Sturm Ruger and Co Inc
Priority to US13/708,735 priority Critical patent/US20140165438A1/en
Assigned to STURM, RUGER & COMPANY, INC. reassignment STURM, RUGER & COMPANY, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WILKINSON, TODD
Publication of US20140165438A1 publication Critical patent/US20140165438A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/32—Muzzle attachments or glands
    • F41A21/36—Muzzle attachments or glands for recoil reduction ; Stabilisators; Compensators, e.g. for muzzle climb prevention
    • 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
    • F41C27/22—Balancing or stabilising arrangements on the gun itself, e.g. balancing weights

Definitions

  • the present disclosure generally relates to firearms, and more particularly to a muzzle brake and weight system for firearms including rifles.
  • Muzzle brakes or recoil compensators counter both the recoil effects and unwanted rising of the barrel upon firing a firearm by laterally and radially venting, combustion gases from the barrel in addition to axially through the forward open muzzle end of the barrel.
  • This provides greater shot-to-shot accuracy for the marksman, which is essential particularly in the context of competitive shooting when using rifles to shoot targets at long distances where a slight deviation in point of aim typically results in large inaccuracies at the target end.
  • Muzzle brakes are typically attached via a threaded or other type connection to the muzzle end of the barrel. To compensate for the added weight and effect on the balance and center of gravity or mass of the barrel with the muzzle brake in place, the user may make appropriate adjustments in the sighting system of the rifle to recalibrate and improve accuracy.
  • a user may elect not to use the muzzle brake which are known to increase noise and concussive effects on the shooter and others nearby.
  • the muzzle brake When the muzzle brake is removed, the user must now make adjustments to re-sight the rifle to compensate for the reduction in weight and effect on the balance or center of gravity or mass of the barrel to regain accuracy.
  • An improved muzzle brake system for allowing a user to shoot with either the brake mounted or dismounted without having to re-sight the firearm each time when changing operating modes is desired.
  • a matched muzzle brake-weight system includes a muzzle brake and a muzzle weight. Both components are interchangeable and releasably mountable to the muzzle end of a firearm barrel.
  • the muzzle brake and weight are each precisely configured, dimensioned, and weighted to have the same weight and center of gravity or mass, thereby allowing the interchangeable use of either component without having to adjust and re-sight the firearm for accuracy.
  • a matched muzzle brake and weight system for a firearm barrel defining a longitudinal axis includes a muzzle weight configured for mounting on a distal muzzle end of the firearm barrel, the muzzle weight having a weight and a generally cylindrical body defining a first axial passageway configured for a bullet or slug to pass through; and a muzzle brake configured for mounting on the distal muzzle end of the firearm barrel, the muzzle brake having a weight and a generally cylindrical body defining a second axial passageway configured for a bullet or slug to pass through, the muzzle brake including a plurality of radially oriented venting holes in fluid communication with the second axial passageway for venting combustion gases.
  • the muzzle weight and muzzle brake each have a respective center of gravity located at an identical point in three dimensions with respect to the firearm barrel to maintain a uniform point of aim for the firearm when either the muzzle weight or brake are interchangeably mounted on the firearm barrel.
  • the muzzle brake and muzzle weight have an identical predetermined weight.
  • a matched muzzle brake and weight system for interchangeable mounting on a firearm barrel having a bore and defining a longitudinal axis.
  • the system includes an elongated muzzle weight configured for mounting on a distal muzzle end of the firearm barrel, the muzzle weight having a center of gravity and cylindrical body defining a first axial passageway coaxially aligned with the bore of the firearm barrel when the muzzle weight is mounted on the barrel; and an elongated muzzle brake configured for mounting, on the distal muzzle end of the firearm barrel, the muzzle brake having a center of gravity and cylindrical body defining a second axial passageway coaxially aligned with the bore of the firearm barrel when the muzzle brake is mounted on the barrel, the muzzle brake including a plurality of radially oriented venting holes in fluid communication with the second axial passageway for venting combustion gases.
  • a method for using a matched muzzle brake and weight system for a firearm includes: mounting the muzzle brake having a cylindrical body and first center of gravity on a muzzle end of a firearm barrel having a bore, the muzzle brake including a plurality of radially oriented venting holes; coaxially aligning a first axial passageway defined by the muzzle brake with the bore of the firearm barrel; locating the first center of gravity of the muzzle brake at a first axial distance measured from a common reference point defined by the firearm barrel; removing the muzzle brake from the barrel; mounting the muzzle weight having a cylindrical body and a second center of gravity on a muzzle end of a firearm barrel; coaxially aligning a second axial passageway defined by the muzzle weight with the bore of the firearm barrel; and locating the second center of gravity of the muzzle weight at the same first axial distance measured from the common reference point defined by the firearm barrel.
  • the method further includes the steps of coaxially aligning the first center of gravity of the muzzle brake with a longitudinal axis defining b the bore of the firearm barrel after mounting the muzzle brake on the muzzle end of a firearm barrel; and coaxially aligning the second center of gravity of the muzzle weight with the longitudinal axis defined by the bore of the firearm barrel after mounting the muzzle weight on the muzzle end of a firearm barrel.
  • the muzzle weight may alternatively be mounted first on the muzzle end of the firearm barrel.
  • FIG. 1 is a perspective view of one embodiment of a matched muzzle brake and weight system according to the present disclosure installed on a firearm barrel;
  • FIG. 2 is a side elevation view thereof
  • FIG. 3 is a longitudinal cross-sectional view thereof with the cross section of the brake being taken along Line A-A in FIG. 2 and the cross-section of the weight being taken along Line B-B in FIG. 2 ;
  • FIG. 4 is a top plan view of the muzzle brake of the foregoing system
  • FIG. 5 is a top plan view of the muzzle weight of the foregoing system
  • FIG. 6A is an additional top plan view of the foregoing muzzle brake
  • FIG. 6B is a side elevation view of the foregoing muzzle brake
  • FIG. 6C is a longitudinal cross-sectional view of the foregoing muzzle brake taken along line 6 C- 6 C in FIG. 6B ;
  • FIG. 6D is a transverse cross-sectional side view of the foregoing muzzle brake taken along line 6 D- 6 D in FIG. 6B ;
  • FIG. 6E is a transverse cross-sectional side view of the foregoing muzzle brake taken along line 6 E- 6 E in FIG. 6B ;
  • FIG. 6F is a rear end view of the foregoing muzzle brake
  • FIG. 7A is an additional top plan view of the foregoing muzzle weight
  • FIG. 7B is a side elevation view of the foregoing muzzle weight
  • FIG. 7C is a longitudinal cross-sectional view of the foregoing muzzle weight taken along line 7 C- 7 C in FIG. 7B ;
  • FIG. 7D is a rear end view of the foregoing muzzle weight
  • FIG. 8 is a transverse cross-sectional view of the muzzle brake taken along line 8 - 8 in FIG. 4 ;
  • FIG. 9 is a transverse cross-sectional view of the muzzle weight taken along line 9 - 9 in FIG. 5 ;
  • FIG. 10 is a perspective view of the muzzle brake of FIG. 4 shown installed on a rifle.
  • a firearm 8 having a barrel 10 which may be a rifle barrel 10 in some embodiments as shown in FIG. 10 , includes a rifled bore 14 and a threaded distal muzzle end 12 configured for threadably and rotatably mounting a muzzle weight 20 or a muzzle brake 30 .
  • Distal muzzle end 12 of barrel 10 may be stepped-down in diameter in some embodiments as shown.
  • Muzzle weight 20 and muzzle brake 30 each may be considered to define a longitudinal axis LA and transverse axis TA oriented 90 degrees thereto as shown in FIGS. 6 and 7 .
  • Longitudinal axis LA defines an axial or longitudinal direction
  • transverse axis TA defines a lateral or radial direction.
  • muzzle weight 20 has a generally cylindrical or tubular elongated body 22 defining sidewalls 22 a, a proximal end 21 , a distal end 23 , and an axial passageway 24 extending between the ends. Passageway 24 extends completely through body 22 and is concentrically aligned with axial bore 14 of barrel 10 when mounted thereon as shown to allow a bullet or slug to pass completely through the muzzle weight 20 and outwards from distal end 23 .
  • Muzzle weight 20 includes an internally threaded portion 26 disposed in passageway 24 which mates with complementary-configured externally threaded distal muzzle end 12 of barrel 10 .
  • muzzle weight 20 may include a pair of opposing flats 25 in the form of substantially planar flat surfaces on diametrically opposed sides of the weight 20 .
  • Flats 25 are configured for engaging complementary-configured tool surfaces (e.g. wrench, pliers, etc.) to facilitate rotatably mounting and dismounting muzzle weight 20 from barrel 10 .
  • muzzle brake 30 has a generally cylindrical or tubular elongated body 32 defining sidewalls 32 a, a proximal end 31 , a distal end 33 , and an axial passageway 34 extending between the ends. Passageway 34 extends completely through body 32 and is concentrically aligned with axial bore 14 of barrel 10 when mounted thereon as shown to allow a bullet or slug to pass completely through the muzzle brake 30 and outwards from distal end 33 .
  • Muzzle brake 30 includes an internally threaded portion 36 disposed in passageway 34 which mates with complementary-configured threaded distal muzzle end 12 of barrel 10 .
  • muzzle brake 30 may include a pair of opposing flats 35 in the form of substantially planar flat surfaces on diametrically opposed sides of the brake 30 , similarly to muzzle weight 20 .
  • muzzle brake 30 further includes a plurality of venting holes 38 for discharging and exhausting combustion gases outwards from the brake.
  • the venting holes 38 may have a circular cross-sectional shape or configuration. Venting holes 38 are disposed circumferentially around and pass through the body 32 of the muzzle brake 30 .
  • venting holes 38 extend in a radial direction outwards from axial passageway 34 and are in fluid communication with the passageway for forming a gas flow path through the sidewalls of the muzzle brake body 32 to the exterior.
  • the venting holes 38 may be oriented perpendicular (i.e.
  • venting holes may be disposed at other angles greater than or less than 90 degrees to the longitudinal axis LA.
  • a plurality of venting holes 38 may be provided that are disposed at a combination of different angles.
  • each venting hole 38 may be considered to define a central hole axis 39 which passes through the centerline of the hole (see, e.g. cross-sections in FIGS. 6D and 6E ).
  • venting holes 38 may be configured and arranged so that the each hole axis 39 is aligned with a corresponding transverse axis TA of the muzzle brake 30 passing through the hole and intersecting the longitudinal axis LA at the convergence of the axes LA and TA (see, e.g. FIG. 8 ).
  • each hole axis 39 may be radially off from the transverse axis TA by an offset distance 37 (see, e.g. cross-sections in FIGS.
  • the offset distance may be about +/ ⁇ 0.020 inches.
  • Combustion gases exiting these offset venting holes 38 will create a rotational force or torque on the muzzle brake 30 acting in a direction perpendicular to the longitudinal axis LA of the brake that will tend to tighten the threaded engagement between the muzzle brake and barrel 10 .
  • the offset direction is selected in consideration of the threading direction used (i.e. left-handed or right-handed) such that the torque effect acts in the same rotational direction as used to tighten the threaded muzzle brake 30 onto the barrel 10 .
  • the muzzle brake will retain a tight connection and not unthread.
  • venting holes 38 are axially spaced apart along the longitudinal axis LA preferably in annular groups of holes spaced circumferentially around the sidewalls 32 a of the muzzle brake 30 , as shown in FIGS. 6A-C .
  • Each venting hole 38 within in an annular group of venting holes may be angularly offset from an adjacent venting hole in the same group (located at the same axial point along the longitudinal axis LA.).
  • each venting hole in the groups depicted are angularly disposed at an angle A 1 from the next adjacent venting hole as measured between each hole access 37 .
  • angle A 1 may be about 60 degrees. Other angles A 1 greater or less than 60 degrees may be used in other embodiments.
  • the venting holes 38 between adjacent annular groups of venting holes as shown in FIGS. 6A-C may be located in a staggered arrangement such that the venting holes in one group (e.g. group closest to end 33 in FIG. 6A ) are circumferentially offset from venting holes in the next adjacent group (e.g. second group in from end 33 to the left of the end group). Accordingly, the venting holes in one group will not be axially aligned with the venting holes in the next adjacent group as shown. This arrangement maximizes the amount of material disposed between each venting hole 38 to maximize the mechanical strength of the muzzle brake 30 .
  • Other suitable arrangements of venting holes 38 may be provided.
  • the muzzle weight 20 and muzzle brake 30 may be made of any suitable material used in the art for such applications.
  • the weight and brake may be made of 416 stainless steel.
  • the weight and brake may be made of the same or different materials.
  • the weight 20 and brake 30 should be made of a material or lined with a material capable of sustaining combustion forces from detonating a cartridge since these components form the end portion of the bullet pathway as shown in FIG. 3 .
  • the muzzle weight 20 and muzzle brake 30 are cooperatively designed to have substantially the same predetermined weight or mass and substantially the same three-dimensional location of the center of gravity COG.
  • a precisely matched set of a muzzle weight and brake beneficially is provided that allows the user to interchangeably use either component without changing and adversely affecting the point of aim and accuracy of the firearm.
  • this eliminates the need for the user to readjust the sighting and point of aim of the firearm each time when either the muzzle brake or weight is used.
  • the weight or mass and center of gravity COG for the muzzle weight 20 and brake 30 may be 1.36 oz. located at an axial distance CL measured along the longitudinal axis LA of approximately 0.86 inches from a common axial reference point Ra such as proximal ends 21 , 31 of the weight and brake, as shown in FIGS. 4 and 5 .
  • the centers of gravity COG of the muzzle weight 20 and brake 30 in this exemplary embodiment preferably is concentrically aligned and coaxial with the longitudinal axis LA of the firearm barrel 10 (and muzzle weight 20 and brake 30 ) falling on the longitudinal axis LA located at the geometric center of each component (best shown in FIGS. 8 and 9 ) due to the fact that the weight and brake are configured symmetrically about the longitudinal axis LA.
  • the radial distance CR of the COG of the weight 20 and brake 30 in this embodiment is essentially zero inches since radially the COG falls directly on the longitudinal axis LA as shown in FIGS. 4-5 and 8 - 9 .
  • Longitudinal axis LA therefore may be considered to define a common radial reference point Rr for measuring and locating the center of gravity COG radially for the muzzle weight 20 and brake 30 .
  • the proximal ends 21 , 31 of muzzle weight 20 and brake 30 respectively will fall and be disposed at the same location on distal muzzle end 12 of barrel 10 when either the weight 20 or brake 30 are mounted to the barrel (see, e.g. FIG. 3 ). Therefore, the proximal ends 21 , 31 coincide with and may further be considered to define a common axial reference point Rr on the distal muzzle end 12 of the barrel 10 from which the center of gravity COG may be axially measured, as shown in FIG. 3 .
  • the terminal muzzle end surface 9 of barrel 10 may alternatively be used to define a common axial reference point Rr′ for measuring a distance CL to the center of gravity COG of the barrel weight 20 and brake 30 (see FIG. 3 ).
  • the exact location of reference point Rr from which to axially measure and locate the center of gravity COG may be defined at any suitable location on barrel 10 so long as the same reference point is used for both the muzzle weight 20 and brake 30 measurements.
  • the weight or mass and center of gravity COG for both the muzzle weight 20 and brake 30 may be balanced and matched by mutually configuring each component to adjust the various design parameters such as the length L1/L2, inner diameters D1/D2 and outer diameters D3/D4, and transverse wall thickness through the sidewalls of the weight 20 and brake 30 (measure between diameters D 1 /D 2 and D 3 /D 4 respectively), and the number, diameter, and placement of venting holes 38 for the brake (see, e.g. FIGS. 6A-F , 7 A-D, 8 , and 9 ).
  • the muzzle weight 20 and muzzle brake 30 may have substantially the same outside diameter of 0.70 inches and substantially same length of 1.650 inches (see FIGS.
  • the muzzle brake 30 has a larger sidewall 32 a thickness and corresponding smaller inside diameter D2; the smallest diameter of which is 0.328 inches where the venting holes 38 are located in one representative non-limiting example for illustration.
  • the venting holes 38 remove material and mass from the muzzle brake 30 , so that a greater wall thickness is needed to balance the mass or weight of the muzzle weight 20 .
  • the muzzle weight 20 correspondingly has a smaller sidewall 22 a thickness and corresponding larger inside diameter D 1 ; the smallest diameter being 0.438 inches measured at the distal end 23 portion and 0.550 measured in the central portion of the muzzle weight body 22 in one representative non-limiting example for illustration.
  • the length and/or outside diameters of muzzle weight 20 and brake 30 may be different so long as the location of the center of gravity COG remains at the same axial and radial position with respect to reference points Ra and Rr (i.e. axial distance CL and radial distance CR, shown in FIGS. 4-5 and 8 - 9 ) when either component is mounted on barrel 10 of the firearm 8 . This will ensure that the point of balance and aim does not change when interchanging the muzzle weight and brake.
  • the muzzle brake and weight may have different lengths or diameters to achieve a matched set.
  • the muzzle brake and weight may be constructed of different materials having different densities to achieve a balance and same center of gravity.
  • FIG. 10 shows an embodiment of a rifle 8 usable with the matched muzzle weight and brake system disclosed herein.
  • Muzzle brake 30 is shown mounted on the distal muzzle end 12 of barrel 10 .
  • the distal muzzle end 12 provides a common axial reference point Ra for measuring and determining a common location for the center of gravity COG of both the muzzle brake 30 and weight 20 depending on which of these components happens to be mounted on the end of the rifle barrel 10 .
  • Rifle 8 further shows a stock having a forestock or forward portion 11 supporting the barrel 10 and a rear butt portion 13 .
  • a firing control mechanism such as the bolt action mechanism 15 in one possible embodiment is also depicted including a moveable bolt configured for loading/ejecting cartridges into the chamber and a trigger mechanism for discharging, the rifle as are all well known to those skilled in the art.
  • the muzzle weight and brake system disclosed herein is useable with any type firearm, including other rifles or pistols and is not limited in application to the firearm embodiments disclosed herein.
  • the method includes: (1) mounting the muzzle brake 30 on a distal muzzle end 12 of the firearm barrel 10 , the muzzle brake having a predetermined weight and center of gravity COG at a location measured from a common reference point Ra on the brake or barrel; (2) removing the muzzle brake from the barrel; and (3) mounting the muzzle weight 20 on the muzzle end of the barrel, the muzzle weight having a predetermined weight and center of gravity COG at a location measured from the common reference point Ra that is identical in location to the center of gravity of the muzzle brake.
  • the muzzle weight may be mounted first.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Braking Arrangements (AREA)
US13/708,735 2011-12-12 2012-12-07 Matched muzzle brake-weight system for firearms Abandoned US20140165438A1 (en)

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US13/708,735 US20140165438A1 (en) 2011-12-12 2012-12-07 Matched muzzle brake-weight system for firearms

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US201161569565P 2011-12-12 2011-12-12
US13/708,735 US20140165438A1 (en) 2011-12-12 2012-12-07 Matched muzzle brake-weight system for firearms

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD743503S1 (en) * 2014-07-10 2015-11-17 Michael Huff Ported extension for a gun muzzle
USD746401S1 (en) * 2014-07-02 2015-12-29 RHF Firearm Products, LLC Firearm muzzle brake
US9441901B1 (en) 2013-04-07 2016-09-13 RHF Firearm Products, LLC Firearm muzzle brake
USD773587S1 (en) * 2015-12-21 2016-12-06 Axts Weapons Systems Firearm barrel nut
US20160370141A1 (en) * 2014-02-24 2016-12-22 Ferfrans Inc Muzzle brake concussion reducing device for firearms and associated muzzle brakes and compensators
USD779019S1 (en) * 2015-10-01 2017-02-14 Gamo Outdoor, S.L. Muzzle brake
USD808490S1 (en) 2016-04-15 2018-01-23 Vista Outdoor Operations Llc Suppressor
US9885533B2 (en) * 2016-03-10 2018-02-06 James Norman Griffitts Barrel stabalizing and recoil reducing muzzle brake
WO2018152299A1 (fr) * 2017-02-15 2018-08-23 James Norman Griffitts Frein de bouche de canon de réduction de recul et de stabilisation de tube d'arme
USD828475S1 (en) * 2016-11-21 2018-09-11 Sturm, Ruger & Company, Inc. Muzzle brake for a firearm
US10422603B2 (en) 2016-03-10 2019-09-24 James Norman Griffitts Barrel stabilizing and recoil reducing muzzle brake
US10816300B2 (en) * 2016-03-10 2020-10-27 James Norman Griffitts Barrel stabilizing and recoil reducing muzzle brake
RU2760833C1 (ru) * 2021-05-25 2021-11-30 Федеральное государственное военное казённое образовательное учреждение высшего профессионального образования "Военная академия Материально-технического обеспечения имени генерала армии А.В. Хрулева" Министерства обороны Российской Федерации Дульный тормоз-компенсатор
US11280572B2 (en) 2016-03-10 2022-03-22 James Norman Griffitts Barrel stabilizing and recoil reducing muzzle brake with guiding ribs
USD1022106S1 (en) * 2021-09-29 2024-04-09 In Ovation Llc Firearm compensator

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DE102019134356A1 (de) * 2019-12-13 2021-06-17 Rheinmetall Waffe Munition Gmbh Kammermündungsbremse

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US6722254B1 (en) * 2001-11-14 2004-04-20 Robert B. Davies Muzzle brake

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US5860242A (en) * 1997-09-04 1999-01-19 O'neil; Pat Removable harmonic tuning system for firearms
US6595099B1 (en) * 2002-05-07 2003-07-22 Knights Manufacturing Co. Multifunctional firearm muzzle attachments
US7328645B1 (en) * 2003-02-10 2008-02-12 Smith & Wesson Corp. Compensation system for a firearm
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US6722254B1 (en) * 2001-11-14 2004-04-20 Robert B. Davies Muzzle brake

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9441901B1 (en) 2013-04-07 2016-09-13 RHF Firearm Products, LLC Firearm muzzle brake
US20160370141A1 (en) * 2014-02-24 2016-12-22 Ferfrans Inc Muzzle brake concussion reducing device for firearms and associated muzzle brakes and compensators
USD746401S1 (en) * 2014-07-02 2015-12-29 RHF Firearm Products, LLC Firearm muzzle brake
USD743503S1 (en) * 2014-07-10 2015-11-17 Michael Huff Ported extension for a gun muzzle
USD779019S1 (en) * 2015-10-01 2017-02-14 Gamo Outdoor, S.L. Muzzle brake
USD773587S1 (en) * 2015-12-21 2016-12-06 Axts Weapons Systems Firearm barrel nut
US10816300B2 (en) * 2016-03-10 2020-10-27 James Norman Griffitts Barrel stabilizing and recoil reducing muzzle brake
US9885533B2 (en) * 2016-03-10 2018-02-06 James Norman Griffitts Barrel stabalizing and recoil reducing muzzle brake
US10197351B2 (en) * 2016-03-10 2019-02-05 James Norman Griffitts Barrel stabilizing and recoil reducing muzzle brake
US10422603B2 (en) 2016-03-10 2019-09-24 James Norman Griffitts Barrel stabilizing and recoil reducing muzzle brake
US11280572B2 (en) 2016-03-10 2022-03-22 James Norman Griffitts Barrel stabilizing and recoil reducing muzzle brake with guiding ribs
USD808490S1 (en) 2016-04-15 2018-01-23 Vista Outdoor Operations Llc Suppressor
USD828475S1 (en) * 2016-11-21 2018-09-11 Sturm, Ruger & Company, Inc. Muzzle brake for a firearm
WO2018152299A1 (fr) * 2017-02-15 2018-08-23 James Norman Griffitts Frein de bouche de canon de réduction de recul et de stabilisation de tube d'arme
RU2760833C1 (ru) * 2021-05-25 2021-11-30 Федеральное государственное военное казённое образовательное учреждение высшего профессионального образования "Военная академия Материально-технического обеспечения имени генерала армии А.В. Хрулева" Министерства обороны Российской Федерации Дульный тормоз-компенсатор
USD1022106S1 (en) * 2021-09-29 2024-04-09 In Ovation Llc Firearm compensator

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Publication number Publication date
WO2013130159A1 (fr) 2013-09-06
EP2791613A1 (fr) 2014-10-22
EP2791613A4 (fr) 2015-09-30

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