Abstract: An apparatus 10 is provided for initially slowing a backwards extraction movement of a bolt group 12 of a weapon which moves backward automatically after firing and against a force of a return drive spring 14. The apparatus includes first and second longitudinal members 16, 30 having respective distal ends and proximal ends. A mounting mechanism is provided for mounting the first and second members for longitudinal movement of the first member relative to the second member and adjacent the drive spring, with the drive spring urging the first and second members apart and against the bolt group. A retarding mechanism 36 is provided for retarding an initial backwards movement of the first proximal end relative to the second distal end, and for allowing a relatively free further backwards movement of the first proximal end relative to the second distal end as the bolt group moves backwards after firing.

Abstract: A recoil-mitigated projectile-firing device comprising a firing assembly, the firing assembly comprising the projectile-firing device secured within a tube and the recoil-mitigated projectile-firing device further comprising a brake assembly surrounding a portion of the tube. The brake assembly comprising at least one brake shoe supported within a frame and means for urging the at least one brake shoe against the outer surface of the tube. When the projectile-firing device is discharged, the firing assembly moves relative to the brake assembly and the frictional force mitigates the recoil.

Abstract: A mechanism embodying a shock absorber, gas spring, mechanical spring or other dampening device connected between slidably connected structural components of a firearm constitutes the basis of the firearm recoil reduction mechanism claimed in this application. The slidably connected structural components may be the firearm barrel, chamber, frame, action or stock. Discharge recoil force reduction is accomplished by connecting slidably connected structural components via a dampening device such as a gas spring/shock. As the relative motion between the slidably connected components progresses, the shock absorber/dampening device is activated resulting in energy adsorption, dispersion of the recoil over a longer time period, and attenuation of the total recoil force. The net recoil force is reduced as a result of the device.

Abstract: A muzzle brake for use with a gun includes a cylindrically shaped hollow body having internal threads adjacent the rear end for threadedly attaching the body to the muzzle of the gun adjacent the bore coaxially along a longitudinal axis of the barrel. The body defines an axially extending internal chamber with a flat transverse wall adjacent the forward end. Longitudinally extending, helically shaped slots are formed through the body and in communication with the internal chamber. The slots are equally distributed about the body, and each of the slots has a forward end that is angled generally toward the rear end from an inner periphery of the body to an outer periphery of the body. Each of the slots is further defined by parallel sidewalls defining an opening with an axis offset (non-intersecting) from the longitudinal axis of the barrel.

Abstract: A recoil dampening assembly for a firearm that includes a bolt assembly and a stock that is linearly moveable with respect to the bolt assembly, includes a plurality of elastically deformable shock-absorbing members having a compression cavity defined therein, and a plurality of rigid spacers interspaced between the shock absorbing members. The plurality of shock absorbing members and rigid spacers are adapted to be placed between a bolt assembly of a firearm and a stock of a firearm. The plurality of shock-absorbing members and rigid spacers are adapted to dampen the recoil as transmitted from the bolt assembly to the stock when a charge that is in the firearm is ignited by allowing each shock absorbing member to at least partially compress within the compression zone.

Abstract: An inexpensive generally retrofitable drop-in cartridge-unit of light-weight pneumatic-cylinder design for replacing the conventional metal/compression-spring member housed within the frame of a gun, thereby providing significantly smoother, quiter, more rapid, and more reliable cyclic-action upon firing of the gun. The preferred embodiment cartridge-unit is internally configured whereby a near constant spring-load rise is provided as the bolt-action slides aftward, thereby effectively spreading resultant recoil-action inertial-kickback more evenly throughout the bolt-travel. Hence, substantially reducing disturbing kickback, enabling a more rapid succession of shots per given shot-grouping owing to the shooter's improved recovery-time. Various iterations are set forth, including those of single, double, and tripple telescopic-action, and a hybrid/metal-pneumatic variant, as well as generic-variants providing manual and automatic pneumatic-pressure adjustment.

Abstract: A mechanism embodying a shock absorber, gas spring, mechanical spring or other dampening device connected between slidably connected structural components of a firearm constitutes the basis of the firearm recoil reduction mechanism claimed in this application. The slidably connected structural components may be the firearm barrel, chamber, frame, action or stock. Discharge recoil force reduction is accomplished by connecting slidably connected structural components via a dampening device such as a gas spring/shock. As the relative motion between the slidably connected components progresses, the shock absorber/dampening device is activated resulting in energy adsorption, dispersion of the recoil over a longer time period, and attenuation of the total recoil force. The net recoil force is reduced as a result of the device.

Abstract: A firearm assembly includes a stock and an action secured to the stock. The action includes a receiver, a barrel, and a recoil lug that is positionable adjacent a bearing seat of the stock. Various fastener assemblies are provided to assemble the action to the stock with the recoil lug firmly seated against the bearing seat, thus providing longitudinal and torsional stability to the firearm assembly. There is further provided a stock having a bedding portion that includes a surface forming a channel in the bedding block. Either the channel or the receiver includes a number of ribs extending therefrom that support the receiver in the bedding channel when the action is secured to the stock. There is also provided a stock having an action mounting insert. A compressible member is provided between the action mounting insert and the stock.

Abstract: A Gas Trap (GT) barrel compensator used for reducing recoil and compensation for muzzle flip, experienced when firing a firearm has an improved compensating effect (downward force) achieved through a GT chamber provided adjacent to and communicating with the firearm barrel. One aspect of compensation is achieved by the release of exhaust gasses into the bottom of the chamber. A second aspect of compensation employs exhaust pressure build up in the GT chamber of gasses from the barrel, and venting of same outwardly of the firearm through ports in the GT chamber. A third aspect of compensation involves discharge of gasses from the barrel upwardly through barrel ports and the chamber ports. All three aspects of compensation can be “tuned” for a specific caliber, and style of gun by varying the size and number of the ports on the barrel and/or GT chamber, while the length of the barrel beyond the compensator has to allow the exhaust gasses to release all the pressure.

Abstract: A recoil mitigation device is provided for a projectile-firing device, such as an explosives disrupter, in which a brake is attached to a barrel of the projectile-firing device and the projectile-firing device/brake combination is positioned coaxially within a tube, the tube secured to a frame or other suitable foundation. The brake includes two or more brake shoes positioned within an annular free space defined by the outer surface of the barrel and the inner surface of the tube and adapted to frictionally contact the inner surface of the tube. An apparatus is attached to the barrel for limiting the lateral movement of the brake shoes and there is an apparatus for urging the brake shoes in an outward radial direction against the inner surface of the tube, whereby when a projectile is fired from the barrel, the brake mitigates the recoil of the projectile-firing device.

Abstract: An unlocked self-loading pistol and a conversion kit for modifying a locked self-loading pistol adapted for firing normal and powerful cartridges into an unlocked self-loading pistol capable of firing weak cartridges as well as normal and powerful cartridges is disclosed. The unlocked self-loading pistol includes a return spring which is closely surrounded on the outside by a sleeve composed of an elastomer material. The length of the elastomer sleeve corresponds approximately to the length of the compressed return spring. The sleeve absorbs a part of the movement energy of the breech and passes it on into the grip. The conversion kit can be used to convert a locked self-loading pistol into an unlocked self-loading pistol as stated above and vice versa. The disclosed conversion kit includes: an alternate barrel which does not come into locked engagement with the breech, the abovementioned elastomer sleeve, and, optionally, a substitute return spring.

Abstract: A method and an apparatus or apparatus system for vibration control, by harmonic optimization technology, of vibrations in the cantilever or barrel, portion of a device from which a projectile is fired or launched along the centerline of the cantilever. More particularly this invention relates to rifles, where the rifle barrel is a cantilever portion, and methods and apparatus for increasing the accuracy of firing projectiles. The invention is principally directed to a method and apparatus including a mass device affixed to a flexible cylinder extension at the muzzle end, inertial mass devices, having combustion pressure reduction features, affixed intermediate the muzzle end and the cartridge chamber, and a spring suspension system between barrel and rifle stock affixed proximal to the cartridge chamber. This system decreases the angular dispersion of barrel vibrations at the muzzle resulting from the firing of projectiles through such barrels.