Abstract: Various embodiments are directed to systems, apparatus and methods configured for anthropometrics data/measurement acquisition such as for fitment of handguns, hand tools, weapons and the like.

Abstract: A firearm stock with adjustable cheek rest has a base having a base side portion configured to overlay a selected major face of the stock, the base having a base upper portion connected to the side portion and configured to extend over the uppermost crest line to the opposed upper surface away from the selected major face, the base upper portion having a first base upper portion surface configured to overlay the first stock upper surface, and a second base upper portion surface configured to overlay the second stock upper surface, and a cheek piece connected to the base and movable with respect to the base between a lower position and an upper position, and a plurality of intermediate positions. The base side portion, first base upper portion surface, and second base upper portion surface may be adhered to various portions of the stock.

Abstract: A detachable monolithic cheek riser for a firearm stock or brace comprises a top portion having an inside surface that is shaped to match the shape of the top of the stock or brace, and includes side portions that extend downward from the top such that each side portion rests on opposite sides of the stock or brace. At the bottom of the sides of the cheek riser there are retention tabs that extend inward, toward the opposite side, and which are configured to fit into recesses on the sides of the stock or brace when the check riser is attached to the stock or brace. No tool is required to install or remove the cheek riser, as a result.

Abstract: A buttstock of a small arm includes a front connection area for a positive connection to a receiver. In order to permit increased cartridge capacity, a trigger unit with a trigger latch and a transfer element extending forward for connection of the trigger latch to a trigger mechanism arranged in the receiver is positioned on the buttstock.

Abstract: The disclosed firing assembly for use in a firearm according to various aspects of the present technology may comprise a hammer configured to pivot between a cocked position and a firing position. The firing assembly may also comprise a hammer release assembly configured to releasably retain the hammer rearwardly in the cocked position. The hammer release assembly may comprise a housing axially connected to the firearm and a spring-loaded disconnector. In addition, the firing assembly may comprise a biasing component configured to bias the hammer and housing forwardly and upwardly, respectively. The firing assembly may further comprise a trigger assembly connected to the hammer release assembly via a trigger bar and configured to controllably operate the hammer release assembly.

Abstract: A pistol conversion kit may be constructed and arranged for converting a pistol to a bull-pup format rifle by attaching an elongated barrel to the pistol. The pistol conversion kit may include a two-part chassis defining a compartment into which the pistol and elongated barrel may be seated behind a handle and trigger guard integrated within the chassis such that the pistol is located behind the pistol conversion kit trigger thereby positioning the pistol in a bull-pup configuration within the chassis. The pistol conversion kit may include a number of sub-assemblies for operating the pistol seated within the chassis and may further include a barrel safety system arranged for preventing use of the pistol conversion kit trigger unless a properly sized elongation barrel is attached to the pistol.

Abstract: Provided is a rubber for a textile roller and a preparation method therefor. The main material of the rubber for a textile roller is a nitrile butadiene rubber, added with conductive powder and conductive bands to form a net-node structure in the nitrile butadiene rubber by means of a mixing process, so that the rubber for a textile roller has a high electric conductivity, can timely export static electricity, and has good mechanical performance suitable for a textile roller, applicable in components of a spinning frame, a roving frame, a drawing frame and other textile machines.

Abstract: The present invention relates to the field of military technology, and more particularly to an automatic firearm. Said firearm consists of a receiver, a barrel, a bolt carrier and a bolt, a bumper spring on the bolt carrier, a recoil spring between the bolt carrier and the rear wall of the receiver, a trigger mechanism, an ammunition feed mechanism, sighting equipment, a device for locking the bumper spring in a compressed state caused by the bolt carrier striking the front wall of the receiver or the barrel or the bolt via the bumper spring, and a mechanism for synchronizing the release of the bumper spring with the firing of a shot.

Abstract: A recoil pad with survival module kit provides rifle recoil absorption and also provides peace of mind to a hunter as a means of carrying essential survival components in a compact form in a way which currently is not provided in the art. In a hunting situation in the wilds, the loss of backpacks or other means of carrying a first aid kit can arise. The most important thing a hunter will try to avoid losing is his or her rifle. Thus, the recoil pad with survival module kit will always be available to the hunter if a crucial scenario should occur as long as the hunter retains the rifle. The survival module kit is compressible within the recoil pad and provides the same recoil absorption as currently available recoil pads along with the added convenience of all of the items contained in the survival module kit.

Abstract: The buttstock assembly uses a modular design including interchangeable end attachments and sling strap connectors. The interchangeable end attachments allow the buttstock to have different toe heights and configurations for different shooting applications. The interchangeable strap connectors allow the use of either quick-disconnect style sling swivels or more traditional fixed strap loops as desired. The buttstock assembly also uses a “trigger” style locking mechanism to selectively position and lock the buttstock along the length of the extension tube to adjust the overall length of pull of the weapon.

Abstract: A lightweight machine gun receiver has a frame having opposed left and right shell portions configured to separably connect to each other in a connected condition, when in the connected condition, the frame defining an internal space configured to receive a reciprocating bolt, have a barrel connection facility, and have a trigger connection facility, when in the connected condition, the frame being an elongated body having a left side panel having upper and lower edges and an opposed right side panel having upper and lower edges, each of the left and right shell portions having top and bottom spans extending laterally from the associated side panel toward corresponding opposed top and bottom spans, the top and bottom spans having respective free ends having respective top and bottom span mating facilities configured to mate with each other, and the top and bottom span mating facilities each having a sliding interface.

Abstract: A magnetic shock absorbing buffer system having a buffer element with a buffer element cavity having internal buffer threads and a buffer cavity shoulder; a plunger element having a plunger head that is slidable within the buffer element cavity, wherein a plunger body extends through the buffer cavity second open end, and wherein a plunger shoulder contacts the buffer cavity shoulder to maintain the plunger head within the buffer element cavity; an adjustment screw, wherein external adjustment screw threads interact with the internal buffer threads to allow the adjustment screw to be adjustably positioned within the buffer cavity; and at least one dynamic magnet and at least one static magnet positioned within the buffer cavity, wherein like poles face one another such that the magnets act to repel one another within the buffer cavity, and wherein the adjustment screw maintains the magnets within the buffer cavity.

Abstract: A recoil pad for a firearm has a compressible body, the body having a forward surface configured to face toward the firearm, an opposed rear surface configured to face toward the shoulder of a user, and the body comprising an anisotropic matrix of flexible material extending from the forward surface to the rear surface. The body may be a unitary mass. The body may be an agglomeration of welded particles. The body may have a plurality of planar members interconnected by elongated spans. The body may define a medial plane associated with a medial plane of the firearm. The planar members may be oriented perpendicularly to the medial plane of the body. The body may define a first array of elongated holes passing through the body in a first direction, and a second array of elongated holes passing through the body in a second direction perpendicular to the first direction.

Abstract: A bullpup-shaped rifle (“BSR”) or assault rifle (“AR”) able to expel a bullet is disclosed. In some embodiments, the BSR includes a firing control unit (“FCU”), grip module, bullpup rear attachment, and bolt and barrel assembly. The FCU is a serialized trigger mechanism capable of initiating launching a directional object when a trigger of the FCU is pulled. The grip module which contains a grip, FCU housing, and rear stabilizing connector, wherein the FCU housing is configured to house a removable FCU. The bullpup rear attachment which is coupled to the rear stabilizing connector for enhancing stability is configured to have a magazine port for receiving a magazine. The bolt and barrel assembly which is situated above the magazine port inside of the bullpup rear attachment behind the FCU facilitates the firing of the object.

Abstract: A cushioning and impact absorbing pad system with a surface layer of thickness t, and an elastomeric sub-surface structure of height h. The sub-surface structure comprises an array of elastomeric columns wherein each column has a frustoconical column wall surrounding a central void. The frustoconical column walls have a zone that is a more compressible, relatively collapsible zone in a region at an end of the column opposite the surface layer and a zone that is a relatively less compressible zone in a region at the end of the column abutting the surface layer. In other embodiments, pad thickness and column height are variable to create a surface which follows the contours of a human body.

Abstract: Pistol frames have a pair of opposed frame shells, the frame shells separable contacting each other at a medial plane, the shells defining a plurality of registered apertures configured to receive a plurality of registration elements, and the shells collectively defining a rail receptacle configured to receive a rail module. The shells may be formed of metal and be an integral unitary element. The shells may define a plurality of receptacles each configured to receive a rail module. The shells may at least in part define a magazine well having opposed sidewalls. The rail receptacle may be in open communication with the magazine well. The magazine well may have opposed side surfaces and opposed front and rear surfaces, the rear surface extending from a lower grip end of the frame and having an upper terminus at an intermediate location spaced apart from an upper limit of the frame.

Abstract: A forearm brace plug assembly for protecting a forearm brace during storage includes a plug that is insertable into a forearm space in a forearm brace of a firearm. The plug inhibits the forearm brace from being deformed during storage. Moreover, the plug is comprised of a resiliently compressible material to conform to the shape of the forearm space. The plug has a storage chamber therein for storing objects. A door is removably attachable to the plug and the door is positioned over the storage chamber to retain the objects within the storage chamber.

Abstract: The weapon magazine cushion is a protective accessory for releasably fastening to a weapon magazine having a magazine base that is directed outward at the lower grip end of the weapon in the installed position and has a substantially planar magazine-base underside to which the weapon magazine cushion is fastened in a self-adhesive manner. It has a blocklike body with a flat abutment side directed toward the magazine-base underside with a rounded end face. The body is formed from an adhesive polyurethane gel material that is elastically deformable under pressure and is enclosed by a non-adhesive and protective skin, apart from on the abutment side.

Abstract: A shoulder-fired firearm primary and secondary recoil attenuator mounts on the butt of a shoulder-fired firearm to absorb both the primary and secondary recoil impulses with distinct spring rates and viscoelastic hysteresis. The attenuator may include a mount plate attachable to a butt of a shoulder-fired firearm. A shoulder plate may be disposed in a spaced-apart, parallel relationship with the mount plate. At least one damper may be disposed between the mount plate and the shoulder plate. The at least one damper may include a viscoelastic copolymer elastomer material having a hollow body elastomer construction. The viscoelastic copolymer elastomer material may be shape-engineered to exhibit time-dependent strain. Accordingly, the at least one damper may have distinct spring rates in response to a primary recoil impulse caused by acceleration of a bullet traveling through a firearm barrel and a secondary recoil impulse caused by ejection of the gases exiting the firearm barrel.

Abstract: A recoil absorber for a firearm including a housing, a stock carrier assembly, a primary spring, and a damper cartridge assembly. The damper cartridge assembly includes a high pressure chamber, a low pressure chamber, and a piston. The piston includes a first piston orifice, a second piston orifice, a second spring, and a poppet which includes a poppet orifice. The second spring applies a biasing force on the poppet. Fluid may flow from the high pressure chamber through the poppet orifice and through the first piston orifice into the low pressure chamber when the pressure of the fluid in the high pressure chamber is between a first pressure and a second pressure. When the pressure increases above the second pressure, the poppet compresses the second spring to self-regulate the pressure in the high pressure chamber.

Abstract: Certain embodiments described herein are directed to a folding buttstock assembly that comprises collars that can reversibly engage each other. In some instances, one or more collars may comprise a gasket to reduce the likelihood of debris entering into the components of the buttstock assembly or firearm components. In other instances, a wiper or cleaning device may be present to remove debris during operation of the weapon.

Abstract: A stock for shotgun includes a grip suitable for being held by the user, a butt suitable for being placed on a shoulder of the user, a hollow body fixed to the grip, a shank fixed to the butt and suitable for being disposed inside the hollow body and fixing means used to fix the shank inside the hollow body. The shank has an external thread. The stock has a metal ring that is crewed onto the external thread of the shank and is suitable for being stopped against an ending edge of the hollow body, in such a way to adjust the distance between the butt and the grip.

Abstract: A bullpup conversion kit for a firearm including a lower receiver with a topside channel that partially receives an upper receiver of the firearm and a magazine well. The firearm includes a trigger pack with a removable trigger. A trigger bar assembly including a trigger bar, a front trigger mount, and a trigger shoe is received within the topside channel. The trigger bar extends along one side of the magazine well. The front trigger mount is disposed on a forward end of the trigger bar. The trigger shoe includes upper and lower ends. The upper end of the trigger shoe is pivotally coupled to the trigger pack in place of the removable trigger. The lower end of the trigger shoe is connected to a rearward end of the trigger bar by a pin. The lower receiver hinges away from the upper receiver about a front hook during disassembly.

Abstract: A recoil reduction stock. The device includes a shock absorber having a first end, a second end, and a spring channel extending therethrough. A coil spring is disposed within the spring channel. A spacer abuts the second end of the shock absorber, and the first end of the shock absorber contacts a rear edge of a firearm stock body. A lag stud is inserted through the spacer and the shock absorber, wherein a tip of the lag stud is configured to engage the firearm stock body, such that the spring is compressed between a rear edge of the firearm stock body and the spacer. A butt plate is affixed to the spacer, wherein the butt plate includes a hollow interior volume in which a head portion of the lag stud is disposed. The compressed shock absorber is adapted to resist expansion and absorb recoil energy when the firearm is fired.

Abstract: A system for reducing a recoil force transmitted upon firing of a firearm. The system includes a first stock portion having a first proximal end coupled to a receiver of the firearm and a first distal end having a distal contact surface, a second stock portion having a second proximal end with a proximal contact surface and a second distal end having a rear contact surface, and a resilient insert positioned between the distal contact surface and the proximal contact surface which is compressible by the relative motion between the first and second stock portions. The gun stock further includes a guide structure extending between the first stock portion and the second stock portion to control the relative motion between the first and second stock portions in response to the recoil force transmitted upon firing of the firearm.

Abstract: A recoil reduction system for a firearm. In some embodiments, the recoil reduction system includes a biasing element and a butt pad assembly configured to deform substantially proportionate to each other during a recoil event. The biasing element and/or butt pad assembly may include a spring-type element or, alternatively, a dampening device. The butt pad assembly may include an open cell butt pad having a hardness that is substantially higher than conventional butt pads.

Abstract: A grip for a rifle is configured and adapted to be mounted to the handguard of the rifle and is only one of left or right handed. The grip is adapted and configured such that, when operating the rifle and holding the grip, a person's palm will extend adjacent one of the opposite sides of the rifle with the grip therebetween and the person's fingers will extend across and below the bottom of the rifle with the grip therebetween.

Abstract: A recoil absorber for a firearm including a housing, a stock carrier assembly, a primary spring, and a damper cartridge assembly. The damper cartridge assembly includes a high pressure chamber, a low pressure chamber, and a piston. The piston includes a first piston orifice, a second piston orifice, a second spring, and a poppet which includes a poppet orifice. The second spring applies a biasing force on the poppet. Fluid may flow from the high pressure chamber through the poppet orifice and through the first piston orifice into the low pressure chamber when the pressure of the fluid in the high pressure chamber is between a first pressure and a second pressure. When the pressure increases above the second pressure, the poppet compresses the second spring to self-regulate the pressure in the high pressure chamber.

Abstract: A recoil reduction system for a firearm. In some embodiments, the recoil reduction system includes a biasing element and a butt pad assembly configured to deform substantially proportionate to each other during a recoil event. The biasing element and/or butt pad assembly may include a spring-type element or, alternatively, a dampening device. The butt pad assembly may include an open cell butt pad having a hardness that is substantially higher than conventional butt pads.

Abstract: A female form fitting buttstock for increased comfort, accuracy and enjoyment when shooting includes a stock that has a top, a fore end and a butt end. The fore end is configured to couple to a receiver of a shotgun that has a rib sight. A pad is reversibly couplable to the butt end, which is positively pitched. The pad and the fore end are positioned such that a length of pull measurement of thirty to forty centimeters is obtained upon coupling of the stock to the receiver. The top of the stock comprises a comb that has a top edge, which is linear and parallel to the rib sight. The toe is positioned outside of a plane defined by the top edge of the comb and the rib sight. The stock is configured to comfortably position within a shoulder pocket of a female user.

Abstract: A blade attachment adapted for use with a firearm having a recoil adjusting plate with a plate aperture and a recoil adjusting plate coupler, as part of a combined firearm and blade assembly. The firearm has a stock with a butt end having a butt end aperture. The firearm has a rear stock aperture and a rear stock coupler. The attachment has an anchoring component including a tongue having a tongue aperture, and a blade component including a collar having a collar aperture and a blade. A method for coupling the attachment to the firearm includes inserting the tongue between the plate and the butt end, aligning the tongue aperture with the plate aperture and butt end aperture, aligning the collar aperture with the rear stock aperture, and employing the plate coupler and rear stock coupler to secure the blade attachment therebetween. The blade can have variably shaped blade edges.

Abstract: An ultra-fast breakover diode has a turn on time TON that is less than 0.3 microseconds, where the forward breakover voltage is greater than +400 volts and varies less than one percent per ten degrees Celsius change. In another aspect of the invention, a breakover diode has a reverse breakdown voltage that is greater, in absolute magnitude, than the forward breakover voltage, where the forward breakover voltage is greater than +400 volts. Yet another aspect of the invention involves a string of series-connected breakover diode dice, along with a resistor string, in a packaged circuit. The packaged circuit acts like a single breakover diode having a large forward breakover voltage and a comparably large reverse breakdown voltage, even though the packaged circuit includes no discrete high voltage reverse breakdown diode. The packaged circuit is usable to supply a triggering current to a thyristor in a voltage protection circuit.

Abstract: A weapon accessory includes an attachment portion that is attachable to a stock of a weapon. The weapon accessory includes a rest portion that allows a user to position the stock above the user's shoulder. The weapon accessory also includes a recoil portion that is configured to transfer a recoil to the user when the user uses the weapon.

Abstract: A bottom hand grip for a firearm, such as AK-47 type rifle is mountable on the rifle in place of a bottom forend. The bottom hand grip engages a front end of the receiver assembly and is further supported by an attachment bolt passing through its bottom plate. Double-walled body of the bottom hand grip is provided with a plurality of openings that help dissipate heat from the firing mechanism and also serve as a means for mounting a rail for a firearm accessory.

Abstract: A firearm includes a receiver and a bolt carrier disposed in the receiver. The bolt carrier is moveable between a firing position and a rearward position. A rod is fixed relative to the bolt carrier and a hand guard is coupled to the receiver about the rod. A handle assembly is slideably supported by the hand guard and is moveable toward the receiver to define a charging motion and away from the receiver to define a forward assist motion. The handle assembly receives the rod during both of the charging and forward assist motions. An arm is coupled to the base and is moveable between a disengaged position spaced from the rod and an engaged position abutting the rod. When the arm is in the engaged position, the handle assembly is moved to move the rod and the bolt carrier in either of the charging and the forward assist motions.

Abstract: A modular buttstock system for firearms includes user replaceable and interchangeable buttstock modules. The modules include a comb portion and butt portion which may be provided in a variety of configurations, sizes, and materials. The modules and firearm buttstock each include complementary configured mounting portions and a mounting system designed to provide interchangeable and removable attachment of the modules to the buttstock. In some non-limiting embodiments, the buttstock and modules may be formed of synthetic materials.

Abstract: An apparatus for an anti-rattle assembly for a collapsible buttstock for a firearm may include a baseplate with a plurality of lower guides and a plurality of fasteners wherein the plurality of fasteners removably secure the anti-rattle assembly to a plurality of fastener positions of a buttstock body. The anti-rattle assembly may further include a pressure plate with one or more ridges to engage one or more rail surfaces of a receiver extension and a plurality of upper guides and a plurality of biasing members wherein the pressure plate is vertically aligned with the baseplate and the plurality of biasing members are coupled between the upper guides and the lower guides and bias the one or more ridges against the one or more rail surfaces. The anti-rattle assembly restricts the movement of the receiver extension in a tubular aperture of the buttstock body.

Abstract: A stock for a small arms weapon which may include a proximal end surface and a distal end surface, the distal end surface including a first opening extending toward the proximal end surface. The stock further may include a multi-lobe chamber connected to the first opening. The multi-lobe chamber may include a primary lobe for housing a receiver extension. The primary lobe may include a track for supporting a bottom surface of a receiver extension. The primary lobe further may include a first side lobe adjacent to the first wall, and a second side lobe adjacent to the second wall. A first insert may be disposed in the first side lobe and a second insert may be disposed in the second side lobe for isolating movement between the stock and a receiver extension disposed in the track.

Abstract: An adjustable stock and cheek rest assembly for a firearm includes a buffer tube extending rearwardly from the firearm at an angle relative to the firearm receiver. A stock is slidably mounted on the buffer tube, and a cheek rest is disposed in overlying relationship to the stock. A cheek rest adjustment arrangement is connected between the stock and the cheek rest, and is provided with a movable linkage for enabling vertical movement of the cheek rest relative to the stock as the stock moves along the angled buffer tube. A movable member provided with locking structure is mounted on the stock for selective engagement with lock receiving structure on the buffer tube for locking the stock in various axial adjustment positions along the buffer tube.

Abstract: A buttstock assembly configured to work in conjunction with a compact buffer assembly consisting of a buffer tube, spring and bolt carrier with an integral buffer is provided. The buttstock assembly, buffer tube and bolt carrier are configured to work with AR15/M16 type firearms and their derivatives. By incorporating the buffer onto the bolt carrier, which is used in conjunction with a buffer tube of reduced length, the overall length of the host firearm is reduced by approximately 3.2 inches. No permanent modification need be made to the host firearm in order to utilize the compact buffer assembly and buttstock assembly disclosed herein.

Abstract: A weapon accessory includes an attachment portion that is attachable to a stock of a weapon. The weapon accessory includes a rest portion that allows a user to position the stock above the user's shoulder. The weapon accessory also includes a recoil portion that is configured to transfer a recoil to the user when the user uses the weapon.

Abstract: A recoil pad having a pad in which the elastomer contains a plurality of pockets having one or more pocket characteristics adjustable over the entirety or portions of the pad to achieve recoil pad characteristics which can be incrementally variably matched to the recoil energy characteristics and recoil energy transfer characteristics of a particular target stock.

Abstract: A butt pad apparatus is disclosed herein. In various aspects, the butt pad apparatus includes a plate and a recoil pad attachable to the plate such that a chamber is defined therebetween. The recoil pad with plate attached thereto may be adapted for attachment to a butt of a stock. In various aspects, the butt pad apparatus includes an insert removably receivable within the chamber, and the insert may be formed of an elastomeric material. This Abstract is presented to meet requirements of 37 C.F.R. §1.72(b) only. This Abstract is not intended to identify key elements of the apparatus and methods disclosed herein or to delineate the scope thereof.

Abstract: A stock bedding system for a firearm is disclosed. In one embodiment, the stock bedding system includes a stock having a pair of bearing surfaces that are configured and arranged to mutually engage a mating pair of bearing surfaces formed on the barrel-receiver assembly. At least one of the four bearing surfaces has a predetermined convex surface profile which causes the barrel-receiver assembly to roll in an angular direction away from one lateral side of the stock towards the opposite lateral side when the barrel-receiver assembly is mounted to the stock. The convex surface profile acts to tighten the engagement between the opposing bearing surfaces of the barrel-receiver assembly and stock providing a secure and vibration resistant mounting. In one embodiment, the convex-shaped bearing surface is defined by a pillar lug mounted in the stock which engages a mating substantially flat bearing surface formed on the barrel-receiver assembly.

Abstract: A stock assembly for attachment to a firearm assembly is described. The stock assembly includes a buttstock having a longitudinal conduit and a locking member; a connector tube with, front and back ends slidable within the buttstock conduit between a fully inserted position and a fully extended position, the tube having a longitudinal conduit; an attachment member slidable within the tube conduit between a forward position and a rearward position, the attachment member having a front end attachable to the firearm assembly and a rear end; a spring within the connector tube engaging the rear end of the attachment member, the spring urging the attachment member toward its forward position; and locking means preventing rotation of the attachment member relative to the connector tube, while allowing the attachment member to move within the tube between its forward and rearward positions.

Abstract: A firearm grip sleeve with retention feature has a body including a central bore and a meeting element. The mating element is connected to a mating feature on the frame of a firearm. The mating element is connected to a mating feature on the frame of a firearm. The mating element prevents undesirable movement of the body with respect to the firearm while the mating feature is connected to the mating element. The mating element may prevent axial movement and upward longitudinal movement of the body. The firearm may include a removable back strap insert.

Abstract: A butt plate for a gun, in particular a long gun, with an intermediate piece to be attached to the rear side of a butt of the gun facing toward the shooter and with a plate made of a recoil-damping material, which is attachable to the side of the intermediate piece facing toward the shooter. A monopod is accommodated in a recess of the intermediate piece in a slidable manner such that the monopod can be moved from a position in which it is substantially arranged within the recess into at least a second position in which an end of the monopod protrudes out of the intermediate piece in such a manner that the butt can be supported on a solid base by means of the monopod. The intermediate piece is substantially made of a machinable material.

Abstract: A recoil reduction stock assembly for a shoulder-fired firearm is described that includes a rear stock section housing a recoil reduction mechanism attachable to firearms with different receiver rear faces by using a front stock section having a rear face attachable to the rear stock section front face and a front face attachable to the rear face of the receiver. The assembly may include one rear stock section housing the recoil reduction mechanism and a plurality of front stock sections, each front stock section having the same rear face profile, but different front face profiles conforming to different receiver rear faces. The recoil reduction mechanism includes a compressible spring and a plunger, whereby recoil of said firearm compresses the spring against the plunger to absorb recoil. The assembly may also include a cheek rest slidably attached over a part of the rear stock section and attached to the recoil mechanism.

Abstract: A recoil reduction stock assembly for a shoulder-fired firearm is described that includes a rear stock section housing a recoil reduction mechanism attachable to firearms with different receiver rear faces by using a front stock section having a rear face attachable to the rear stock section front face and a front face attachable to the rear face of the receiver. The assembly may include one rear stock section housing the recoil reduction mechanism and a plurality of front stock sections, each front stock section having the same rear face profile, but different front face profiles conforming to different receiver rear faces. The recoil reduction mechanism includes a compressible spring and a plunger, whereby recoil of said firearm compresses the spring against the plunger to absorb recoil. The assembly may also include a cheek rest slidably attached over a part of the rear stock section and attached to the recoil mechanism.

Abstract: A stock for a small arms weapon that includes a first member that includes a distal end which has a receiver extension connection structure, a proximal end, a first longitudinal axis extending between the proximal end and the distal end, and a first cross-sectional profile perpendicular to the first longitudinal axis which defines a maximum outer dimension of the stock. The stock further includes a second member connected to the first member which includes a third end adjacent to the proximal end, a fourth end spaced from the distal end, and a second longitudinal axis extending between the third end and the fourth end such that the first longitudinal axis and the second longitudinal axis are disposed at an acute angle. The stock further includes a chamber inside the second member that is sized and configured to house a power supply for a small arms accessory.