Abstract: A recoil reduction system for use with firearms. The recoil reduction system includes a cam coupled with a torsion spring which can provide resistance to a sliding member of a firearm, thus reducing recoil. The torsion spring and cam can be used as part of a recoil reduction system that is installed in a handgrip or in a forend. Accessories may be attached to the recoil reduction means in order to gain the benefits of recoil reduction.

Abstract: A collapsible stock which includes a stock body having a buffer tube holder, a firearm buffer tube slidingly mounted in the buffer tube holder, the stock body being arranged for linear reciprocating motion relative to the buffer tube during firing of the firearm, a recoil absorbing mechanism mounted inside the stock body and affixed to the buffer tube, and a locking pin mounted through the stock body and affixed to the buffer tube, the stock body being arranged for motion relative to the locking pin during firing of the firearm.

Abstract: A muzzle break which directs propelling gases rearward and upward to reduce both recoil and muzzle jump. The gases are redirected by curved vanes which extend from a tapered central bore whose diameter decreases in the shooting direction.

Abstract: The invention comprises an improved recoil control device comprising a bolt head and an inertia block for use in a variety of firearms. In one embodiment, the bolt head and inertia block are articulated so that the displacement of the bolt head results in a force component outside the firing axis of the barrel of the firearm. The device can be incorporated into firearms of a variety of sizes and configurations to produce recoil reduction and/or weight reduction advantages.

Abstract: A collapsible stock for a firearm and a firearm therewith. The firearm uses an action mechanism to discharge a cartridge so that a bullet travels through a barrel have a length of between seven inches and twenty four inches. The collapsible stock assists the action mechanism in ejecting a spent cartridge and injecting a fresh cartridge into the action. The collapsible stock is a slidable butt member which engages a stock tube. Within the stock tube is a uniform spring capable of reliably operating for varying barrel lengths together with a buffer mechanism working with the spring.

Abstract: A buffer for a firearm having a sleeve member having an open end and a closed end. A mass is contained within the sleeve member. This mass is chosen to meet the demands of the particular firearm. A bumper secures and seals the open end of said sleeve. A spring within the sleeve maintains the mass at a predetermined location when the buffer is in an at-rest position.

Abstract: A collapsible stock which includes a stock body having a buffer tube holder, a firearm buffer tube slidingly mounted in the buffer tube holder, the stock body being arranged for linear reciprocating motion relative to the buffer tube during firing of the firearm, a recoil absorbing mechanism mounted inside the stock body and affixed to the buffer tube, and a locking pin mounted through the stock body and affixed to the buffer tube, the stock body being arranged for motion relative to the locking pin during firing of the firearm.

Abstract: A collapsible M16-type stock which includes a first portion coupled to the firearm buffer tube and a second portion abutting the user's shoulder, with a recoil mitigation mechanism disposed between the two portions, so as to mitigate the recoil caused by the firearm.

Abstract: An action rate control system for a gas operated firearm that includes an action sleeve and an action rate control cylinder. The action sleeve moves in a rearward direction in response to a volume of combustion gases that are generated during firing of the firearm and diverted from the barrel of the firearm through gas ports. The action rate control cylinder is connected to the action sleeve by a linkage that controls movement and slowing of the action sleeve as it approaches a rear limit for its movement. The resistance force generated by the rate control cylinder is a function of the velocity of the action sleeve during its movement. In another aspect, a gas operated firearm includes a barrel, a bolt assembly, an action system coupled to the bolt assembly, and a rate control cylinder coupled to the action system. The action system includes a sleeve assembly that is driven by a volume of combustion gases that are diverted from the barrel when a round of ammunition is fired.

Abstract: Damping apparatus for use with firearms are described herein. An example firearm described herein includes a barrel assembly mounted in a frame of the firearm. A damper apparatus is axially disposed between a breech assembly and a portion of the frame of the firearm opposite a muzzle end of the barrel assembly, wherein the damper apparatus is operatively coupled to the barrel assembly and slidably receives a firing pin guide.

Abstract: A dampened recoil rest for supporting a rifle for enabling a shooter to operate the rifle with adjustable attenuation of recoil felt by the shooter, eliminating damage to the rifle by progressively absorbing or attenuating recoil, with the sight remaining on the target thereby eliminating a need to reacquire the target, without having to add additional weight to absorb the recoil, and with comfortable transfer of the recoil from the rifle to the shooter's shoulder. The rest includes a stationary base assembly, a rotating base assembly, a recoil attenuating assembly, and a rifle support assembly. The stationary base assembly is for attaching to a bench top. The rotating base assembly is rotatably attached to the stationary base assembly.

Abstract: A method for releasably attaching a compensator assembly adjacent a muzzle end of a barrel of a firearm. The compensator assembly includes an attachment means on its rear end. The barrel has a firing axis and includes a threaded end opposite the muzzle end and defines a recess formed adjacent the muzzle end. The firearm itself has a frame defining a threaded aperture. The method includes moving the attachment means into engagement with the recess; tensioning the attachment means within the recess in a direction substantially parallel to the firing axis; inserting a mating tool into the muzzle end of the barrel; rotating the barrel via the mating tool, thereby causing the threaded end of the barrel to threadedly engage with the threaded aperture; and halting the rotation of the barrel via the mating tool when a predetermined torque is achieved.

Abstract: A recoil reducer device for use with a firearm is provided, that is movable between a rest position and a recoil position. The recoil reducer device includes a firearm stock, including a first stock member having a first stock member cavity, and a second stock member having a second stock member cavity. A recoil reducer is receivable in the first and second stock cavities. The recoil reducer includes a shock absorber including a housing and an axially movable plunger. A slider is provided that includes a first slider member fixedly coupled to the shock absorber, and a second slider member movable with respect to the shock absorber and first stock member. A base member is fixedly coupled to the second slider member and a magnet that is magnetically coupled to the base member.

Abstract: A firearm is formed by a housing, in which an assembly of a carriage and a barrel with a muzzle stop, and a breech are displaceably supported, and wherein the breech is equipped with a return spring that is supported on the rear support surface of the housing, has a counter weight displaceably disposed in a longitudinal space located between the housing and the carriage, on the support surface of which counter weight the rear end of the return spring is supported, and which is seated in the front position thereof on a front stop surface of the carriage.

Abstract: The invention comprises improved designs in a recoil control device comprising a bolt and slider for use in a variety of firearms. In one embodiment, the bolt and slider are articulated so that the displacement of the bolt results in a force component accompanying the slider as it moves along a slider path that traverses a line formed by a linear firing axis of the barrel of the firearm. The slider can have additional structural and functional features, including stabilizing features, vibrational damping elements, elements of the fire control mechanism, and devices to manage the peak impulse of the slider movement as it contacts a base or terminus point.

Abstract: A recoil reduction system having an elongated forend portion having a front end, a rear end, a left side wall, a right side wall and a bottom wall; and recoil reduction means attached to said forend, wherein said recoil reduction means further comprises a longitudinally extending rail extending downwardly from a bottom surface of said forend portion; and an upright oriented handgrip having a top end, a bottom end, a front end, and a primary chamber that extends upwardly within said handgrip, wherein a track is formed in said top end of said handgrip, wherein said rail is slidably received in said track to support said handgrip, and wherein said recoil reduction means is mounted in said primary chamber of said handgrip.

Abstract: A hydraulic recoil buffer assembly for a firearm having a receiver and a fixed or collapsible stock assembly including an end cylinder adapted to be secured to the pistol grip or receiver of the firearm and slidably translatable with respect to the extension tube, and a hydraulic shock absorption assembly operative to produce a hydraulic resistance to a rearward movement of the end cylinder during recoil of the firearm. The hydraulic shock absorption assembly has an orifice restricted fluid flow passage and a piston head that compresses a return spring as the end cylinder moves rearward against a recoil coil spring. The recoil buffer assembly stores a portion of the recoil energy through compression of the recoil spring and the return spring, and dissipates a portion of the recoil energy through the resistance provided by fluid flow through the orifice restricted flow passage.

Abstract: The invention comprises improved designs in a recoil control device comprising a bolt and slider for use in a variety of firearms. In one embodiment, the bolt and slider are articulated so that the displacement of the bolt results in a force component accompanying the slider as it moves along a slider path that traverses a line formed by a linear firing axis of the barrel of the firearm. The slider can have additional structural and functional features, including stabilizing features, vibrational damping elements, elements of the fire control mechanism, and devices to manage the peak impulse of the slider movement as it contacts a base or terminus point.

Abstract: A buffer tube for a firearm, which is not an M16-type firearm, the buffer tube including a recoil mitigation tube, a recoil piston reciprocatingly mounted inside the recoil mitigation tube, and a recoil absorbing mechanism disposed in the recoil mitigation tube and engaging the recoil piston.

Abstract: An apparatus and method for easily, quickly and reliably attaching a noise suppressor or other auxiliary device to the muzzle end of a firearm barrel and for easily, quickly and reliably removing the noise suppressor or other auxiliary device there from. My invention also provides for adjusting the host firearms point of impact by changing the orientation of the noise suppressor in relation to the host firearms bore.

Abstract: A ballistic test projectile includes a nose section comprising a windshield and aft of the windshield, an ogive; a body section aft of the nose section, the body section comprising a generally cylindrical body connected to the ogive; a base section aft of the body section, the base section comprising a base adapter connected to the body and a base bottom connected to the base adapter; a base pressure gage disposed in the base bottom; at least one side pressure gage disposed in the body; and an electronics cup disposed in the body, the electronics cup comprising a battery cup, a signal conditioning cup, a multiplexer cup, an accelerometer cup and a transmitter cup.

Abstract: The present invention relates to a silencer for reducing muzzle blast and noise of firearms or similar devices. The present silencer has a hollow cylindrical or other shape casing comprising front and rear end caps and an opening aligned along a longitudinal axis defining a passage for a projectile and propellant gases to emerge from the muzzle opening. A plurality of serially placed baffles of symmetrical or slanted orientation and intervening coaxial spacers are positioned within the casing and define a multitude of chambers among the baffles, spacers, and outer housing. The baffles shear propellant gases away from the projectile path and through openings or ports into additional chambers formed between the spacers and outer housing. The arrangement of baffles and spacers provides flow-impeding paths, dispersion, and controlled expansion of gases and lowers gas temperature to reduce audible noise and observable signature of the muzzle blast.

Abstract: A method and apparatus counteracts the muzzle lift of a firearm resulting from recoil, and a firearm has an integral counteracting structure. A port extends from an inner surface of the firearm barrel bore to an outer surface of the barrel, forward of the location that the propellant ignites, to an occluding structure located beneath the grip surface of the firearm. When the propellant is ignited, and the projectile passes the relief port, a portion of the propellant gas exits the bore prior to the muzzle end, travels through the propellant gas relief tube, and exerts a force on the occluding structure. The force acts downward on the firearm, counteracting the recoil-induced muzzle lift.

Abstract: The present invention is directed towards a rifle recoil absorption system comprising a harness attached to a rifle support and shooting surface for absorbing recoil force generated when a high powered rifle is fired.

Abstract: A muzzle brake includes three primary structural components, namely a main body, a baffle, and an end cap. The components are preferably integrally fabricated into a single piece device, or alternatively may be fabricated separately and assembled. A muzzle brake in accordance with the present invention comprises a generally cylindrical muzzle brake assembly attachable to the muzzle end of a firearm. The muzzle brake assembly forms two expansion chambers, each of which is bounded by a peripheral sidewall defining opposing left and right vent apertures and a converging end wall. The end walls define axially aligned openings sized slightly larger than the diameter of the projectile for allowing the projectile to pass from the firearm muzzle, through the muzzle brake, and onward down the target line toward the intended target. The first chamber defines opposing left and right vent apertures for venting gases generally upward and rearward to reduce muzzle jump.

Abstract: The invention relates to systems, methods and devices for controlling the dispersion of shot or other projectiles fired from a weapon such as a shotgun. Embodiments according to the invention employ an inner cylindrical chamber that is divided at a median transverse plane into forward and rear sections. The rear section of the chamber tapers toward the median transverse plane and includes a number of radial vents that open into an outer chamber that provides one or more gas bypass channels into the forward section of the tubular chamber. The forward section tapers toward a forward muzzle opening. When a multiple projectile load/wad is fired from the weapon, expanding gas is sealed behind the load until it has advanced past the radial vents at which point, gas is allowed to expand into the outer chamber resulting in a momentary pressure drop and reduced propulsion force behind the wad/load.

Abstract: A recoil mechanism for a gun with a frame, a barrel and a slide, has a cylinder with a rear with external flange and an internal diaphragm spaced forwardly of the flange and between a rear chamber and a front chamber in the cylinder. A nut is fixed to the frame and an axle has a rear end threaded to the nut and extends in the cylinder. The axle has a collar trapped in the front chamber by the diaphragm. A first spring around the cylinder, has a front end abutting the slide and a rear end abutting the flange. A second spring extending at least partly in the rear chamber has a rear end abutting the nut and a front end abutting the diaphragm. A third spring in the front chamber, is shorter in length than the front chamber. A recoil adjusting plug is used with or without the recoil mechanism.

Abstract: A device for disrupting improvised explosive devices (IEDs) with a projectile, which serves to penetrate and/or destroy at least part of the IED. In addition, an accelerator is provided, which accelerates the projectile when the device is actuated and propels it through a barrel. The accelerator is a cartridge filled with propellant. The cartridge is stored in a magazine and contains an initiator for initiating the acceleration. A primer, which is located at the base of the cartridge, serves as the initiator. Initiation occurs when the primer is struck by a firing pin.

Abstract: A weapon system which may be carried by a person, including a weapon having a weapon barrel, a muzzle brake, a cartridge holder connected at a rear end of the barrel, a base part removably attached to the cartridge holder, and having a lock with an ignition device and a nozzle, a recoil brake mounted around the barrel, a weapon structure or weapon housing, a firing control operative to permit target assignment and an electrical communication interface between the person and the firing control.

Abstract: A recoil mechanism for a gun with a frame, a barrel and a slide, has a cylinder with a rear with external flange and an internal diaphragm spaced forwardly of the flange and between a rear chamber and a front chamber in the cylinder. A nut is fixed to the frame and an axle has a rear end threaded to the nut and extends in the cylinder. The axle has a collar trapped in the front chamber by the diaphragm. A first spring around the cylinder, has a front end abutting the slide and a rear end abutting the flange. A second spring extending at least partly in the rear chamber has a rear end abutting the nut and a front end abutting the diaphragm. A third spring in the front chamber, is shorter in length than the front chamber. A recoil adjusting plug is used with or without the recoil mechanism.

Abstract: A modular rail cover can have rail cover modules and rail cover sections that can be snapped onto or slid onto a mounting rail. Rail cover modules have recoil sockets into which recoil plugs are inserted. The recoil plugs engage recoil grooves such as those in Picatinny type mounting rails to fix the rail cover modules into position. The rail cover sections have section couplers that engage corresponding module couples on the rail cover modules. The section couplers and module couplers lock rail cover sections to rail cover modules. Section couplers can also lock rail cover sections to one another.

Abstract: Stock for a recoilless hunting rifle, for medium and large caliber hunting guns, which eliminates the stress produced by the effect of the recoil on the shooter's shoulder, providing at the same time a good targeting precision and a reduced consumption of bullet cartridges or shot cartridges. The stock has a stock butt and a mechanical anti-recoil module, with fast assembling, and a gun stock resembling the classical gun stocks but without transferring the recoil force to the shooter's shoulder. The recoilless buttstock comprises a mechanical anti-recoil module, presented as an assembly comprising a coupling member, an elastic mechanism, a fixed seating with rollers, a superior guide with spring, an inferior guide with spring and the case of the stock.

Abstract: The invention comprises an improved recoil control device comprising a bolt head and an inertia block or slider for use in a variety of firearms. In one embodiment, the bolt head and inertia block are articulated so that the displacement of the bolt head results in a force component outside the firing axis of the barrel of the firearm. The device can be incorporated into firearms of a variety of sizes and configurations to produce recoil reduction and/or weight reduction advantages.

Abstract: A recoil reduction mechanism for a gun includes two successive springs cooperating with a cylinder, an axle and a magnet. The magnet attracts the gun's slide and the cylinder, in a direction opposite of the slide's and the cylinder's recoil direction. A third spring, because of its position and size, acts as an extra suspension for the gun's recoil, and as an accelerator for the slide's reciprocating motion.

Abstract: A hydraulic recoil buffer assembly for a firearm having a receiver and a fixed or collapsible stock assembly including an end cylinder adapted to be secured to the pistol grip or receiver of the firearm and slidably translatable with respect to the extension tube, and a hydraulic shock absorption assembly operative to produce a hydraulic resistance to a rearward movement of the end cylinder during recoil of the firearm. The hydraulic shock absorption assembly has an orifice restricted fluid flow passage and a piston head that compresses a return spring as the end cylinder moves rearward against a recoil coil spring. The recoil buffer assembly stores a portion of the recoil energy through compression of the recoil spring and the return spring, and dissipates a portion of the recoil energy through the resistance provided by fluid flow through the orifice restricted flow passage.

Abstract: The subject invention concerns a method and a device enabling said packed countermass material (11) to open up said countermass packagings (10) in relation to the firing of countermass weaponry. The basic concept for the subject invention is, thus, that one near the rear outlet end (12) of a countermass weapon (1) barrel fashion a number of blades (15) to the interior of the outlet that protrude inwardly into the barrel sufficiently so as to cut into said countermass container (10), which is pressed past said blades (15) upon firing said weapon (1).

Abstract: A recoil reduction system for the front end of a firearm, such as a shotgun or a rifle. In a first embodiment, the recoil reduction structure is mounted in a handgrip member secured to the bottom surface of the forend member. Various types of springs and cylindrical elastomer members can be utilized in various handgrip members. In a second embodiment the recoil reduction system is mounted in the forend member. In a third embodiment, the recoil reduction structure is utilized with a rifle having a long gun stock. The long gun stock has a butt portion, a middle portion and a front portion. The front portion is located forwardly of the receiver. A primary recess is formed in the bottom wall of the front portion and the recoil reduction structure is mounted therein. A cover member positioned over the primary recess hides the recoil reduction structure from view. A handle member may be secured to the bottom surface of the cover member and it may be retractable or rigidly positioned upright.

Abstract: A compensation system for a firearm includes a barrel having a longitudinal bore that defines a firing axis. A compensator assembly is also included and has an attaching mechanism for releasably attaching the compensator assembly adjacent a muzzle end of the barrel. A gas discharge port is formed in the compensator assembly that is not aligned with the longitudinal bore. The gas discharge port communicates with an inner bore of the compensator assembly.

Abstract: A pneumatic recoil reduction adapter for use with a barrel and breech of an existing explosives disarmer. The adapter substantially reduces and, indeed, achieves near-total recoil reduction of recoil using venturi-venting rather than damping liquids, spring-damped shot tubes or other unwieldy mechanics. The recoil reduction adapter is formed with a central chamber to seat a cartridge and a plurality of axially extending passages leading outward from the central chamber through a corresponding plurality of radially-spaced venturi nozzles. Upon firing, exhaust gases are vented rearwardly back through the central chamber and outward through the venturi nozzles to offset and thereby reduce recoil forces.

Abstract: A recoil and muzzle blast dissipator may be attached to the barrel of a gun and may redirect propellant gasses. In one embodiment, a recoil and muzzle blast dissipater may include a body portion having an internal plenum and a plurality of vent slots, each vent slot having an aperture in communication with the internal plenum. Each successive vent slot may include an aperture that is larger in area than the aperture of the previous vent slot. An exterior tube may include a side port and may be arranged to overlay the body portion such that a portion of each vent slot is covered by the exterior tube, and a portion of each vent slot is in communication with the side port.

Abstract: A hydraulic bolt buffer assembly for an automatic firearm, the firearm including a receiver having a longitudinal chamber, a bolt and carrier assembly mounted in the chamber for reciprocating movement between a recoil position and a battery position, a spring for urging the buffer into contact with the bolt and carrier assembly for movement therewith and for biasing said bolt and carrier assembly toward the battery position. The buffer assembly includes a housing having an inner cavity, as well as a piston disposed within the inner cavity of the housing that is movable between an extended position and a depressed position, the piston being in contact with the bolt and carrier assembly. The buffer further includes a spring for biasing the piston in the extended position, as well as a bearing member in fixed relation in the housing and permitting a fluid tight seal with the interior of the buffer housing.

Abstract: A recoil pad for a shoulder firearm includes at least one piston member that is caused to move axially from an initial axial position to a second axial position upon application of the recoil force from the firearm. The axial movement of the piston member causes fluid movement within a column relative to a variable or fixed orifice area wherein the fluid movement causes resistance that absorbs the energy. A mechanical and/or hydraulic and/or elastomeric feature returns the piston to the initial axial position upon cessation of the applied recoiling force.

Abstract: An improved Barrett anti-armor gun that is modified to function from the open bolt with advanced primer ignition, wherein the forward momentum of the recoiling masses at the moment of firing offset a significant portion of the recoil impulse from firing. The modification reduces the recoil energy absorbed by the shooter.

Abstract: A damper for reducing recoil and vibrations during and after firing a firearm may comprise a resilient member and a weight. The resilient member may mounted to a portion of a firearm having a surface suitable for engaging and retaining the resilient member therein, and the resilient member may have an inside surface suitable for engaging and retaining the weight.

Abstract: An improved muzzle brake, attached to the end of a rifle barrel reducing the recoil of the rifle includes an internally threaded attaching end, engaging outer threads of a rifle barrel, a flattened projectile end, with an overall increasing taper from the attaching end to the projectile end, a flat upper surface which does not impede the sight line of the rifle, a flat lower surface, and two lateral surfaces including a first lateral oval vent, a second lateral oval vent and a third lateral oval vent, the first lateral vent defining a first flat brake plate having a first central bore, the second lateral oval vent defining a second flat brake plate having a second central bore and the third lateral oval vent defining a third flat brake plate having a third central bore penetrating through the projectile end, wherein a bullet fired from the rifle travels through the attaching end, the first central bore, second central bore and third central bore, while the gasses generated by the fired projectile are deflecte

Abstract: An apparatus and method for easily, quickly and reliably attaching a noise suppressor or other auxiliary device to the muzzle end of a firearm barrel, and in particular to a flash suppressor affixed to the muzzle end of the firearm, and for easily, quickly and reliably removing the noise suppressor or other auxiliary device therefrom.

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 recoil mitigation apparatus for a projectile-firing device, such as an explosives disrupter, is provided. At least one brake shoe is positioned proximate the projectile-firing device and means are provided for urging the at least one brake shoe toward the projectile-firing device. The urging of the at least one brake shoe provides a frictional force to mitigate the recoil of the projectile-firing device. In a preferred embodiment, at least one pair of brake shoes are provided. In a further preferred embodiment, the each of the at least one pair of brake shoes are positioned in a facing, spaced apart relationship and the at least one pair of brake shoe combination is positioned in a coaxial relationship to the projectile-firing device.

Abstract: A recoil brake isolation system for the hydraulic recoil brake cylinder of a large caliber gun, includes two sets of hydraulic valves disposed respectively within the inlet valve block and return valve block of the hydraulic cylinder, an orchestrated combination of which together block the flow of hydraulic fluid to or from the hydraulic cylinder during the recoil/counterrecoil cycle or upon failure of the hydraulic circuit. A method of hydraulically isolating a recoil brake cylinder of a large caliber gun for survivability and improved weapon performance and a gun incorporating such a system are also included.

Abstract: A braking system is provided for mitigating the linear or rotational motion of an object having an axis, the linear or rotational motion being coaxial with the axis. In particular, the motion is the type which is the result of an impulse imposed over a short period of time, typically less than one second. The object whose linear or rotational motion is to be mitigated is disposed coaxially within a tube. The braking system includes at least one brake shoe positioned within an annular free space defined by the outer surface of the object and the inner surface of the tube. The at least one break shoe may be urged against the outer surface of the object or the inner surface of the tube to effect the mitigation.