Abstract: There is proposed an adjustable gunstock for a firearm, comprising, a base, a mount, at least one relocation member and at least one adjustment member. The base is fixedly connectable to a stock body of the firearm and the mount adjustably engageable with the base. The mount, or a part attachable thereto, forms a shooter's body engaging portion. The at least one relocation member is couplable to the base and configured to adjust the mount relative to the base in a first direction. The at least one adjustment member configured to engage the least one relocation member, and is couplable to the mount, to thereby adjust the mount relative to the base in a second direction, wherein the mount is movable both laterally of, and away from or towards, the stock body of the firearm.

Abstract: An adjustable shoulder rest for a rear stock for a rifle or shotgun, with slidable adjustment features at the butt plate to customize the shoulder to firearm interface, providing diverse adjustment options pursuant to user preference and/or circumstances of use. The present invention further provides a pivotal, slidably-adjustable shoulder rest to facilitate customized position adjustment to the firearms orientation vis-a-vis the operator, including the option to provide a swivel connection for adjustment of the firearm during operation as well as the option of providing haptic feedback to communicate to the user or otherwise facilitate line of sight alignment of the firearm at various angles relative to the longitudinal axis thereof in line with one or more sighting apparatus mounted thereto.

Abstract: An ambidextrous folding stock assembly for a firearm includes a forward hinge fitting attached to the firearm, a central assembly disposed on a rear side of the forward hinge fitting, and a rear hinge fitting disposed on a rear side of the central assembly. The central assembly includes at least one hinge body, an actuation portion including a lower portion disposed below the at least one hinge body, and at least one latch portion disposed below the at least one hinge body.

Abstract: A universally adjustable firearm stock is provided having adjustments for comb, cast, length of pull and butt pad height. The stock has an adapter (receiver model specific) to connect a frame to the receiver. An end of a mount passes through a slot through a frame seat. A cast piece is received within the seat and has a cast hole (center hole—no cast, offset hole—cast). The rearward extending end of the mount passes through the cast hole, wherein any offset in the cast hole results in an angular cast. The comb is vertically adjustable relative to the frame. Two rods are extendable relative to the frame to adjust the length of pull. A butt plate has two slots wherein the height of a butt pad relative to the rods is adjustable.

Abstract: The invention provides improved modular gun stocks and their methods of manufacture. Advantageously, gun stocks of the invention require fewer parts than conventional gun stocks. The lower stock supports of the improved modular gun stocks can be removed and replaced in multiple ways so that a variety of gun stocks can be created as desired. The invention also eliminates the undesirable rattling noise that modular gun stocks often have after assembly.

Abstract: A stock for a gun is disclosed which includes a butt stock body (12). The butt stock body may include a butt plate receptacle (108). The stock further may include a butt plate assembly (20) positioned in the butt plate receptacle (108), a cheek piece (18) releasably secured to the butt stock body (12) and the butt plate assembly (20), and a clamp (30). The stock may include first and second configurations such that in the first configuration the clamp permits independent movement of the butt plate assembly (20) and the cheek piece (18), and in the second configuration the clamp fixes movement of the butt plate assembly and the cheek piece relative to the butt stock body. The clamp (30) may be assembled within the stock body (12) to provide for variable adjustment of the butt stock with a dominant hand on the firearm grip.

Abstract: Disclosed is a connector for hingedly mounting a buttstock to a receiver of a rifle. The connector has a fixed hinge portion, a receiver side of the fixed hinge portion, an interface side of the fixed hinge portion, a threaded protrusion extending from the receiver side of the fixed hinge portion, a buffer hole extending from the interface side, through the fixed hinge portion, and through the threaded protrusion, a tube lock hole extending from the interface side, through the fixed hinge portion, to the receiver side, and a lock screw sized in relative proportions to be threadably received in the tube lock hole.

Abstract: An adjustable stock system for a firearm can include a buttstock slider configured to be slidably attached to the firearm for moving relative to the firearm between a collapsed position and at least one extended position. The buttstock slider can include a plurality of buttstock grooves defined therein. The system can include a lower stock assembly that is configured to mount to a firearm and a latch assembly disposed within the lower stock assembly. The latch assembly is configured to be moveable between a latched position where the buttstock slider cannot slide relative to the firearm and an unlatched position where the buttstock slider is free to slide relative to the firearm. The latch assembly can include at least one latch tooth configured to mate with the plurality of buttstock slider grooves when the latch assembly is in the latched position. The latch assembly is biased to the latched position.

Abstract: Methods, systems, and apparatuses for interchangeable, customizable, and suitable grips for firearms are described. In some embodiments, the grip includes two components, a grip base piece and an interchangeable grip (e.g., an interchangeable grip attachment) of the firearm user's choice. The grip base piece attaches to the lower receiver held by a pistol grip screw and a lock washer. In some examples, the grip base piece may only be installed once, for example, initially prior to implementation of interchangeable grips (e.g., the grip base piece may not require any other attention or installation changes after the initial placement onto the lower receiver). Following the installation of the grip base piece on the lower receiver, interchangeable grips of users' choice may be connected to the grip base piece (e.g., and interchanged with other interchangeable grips) via utilizing a grip interface (e.g., a T-shaped mating tab of the interchangeable grip).

Abstract: This disclosure describes a firearm stock or arm brace with an adjustable length of pull. The stock or arm brace can include a body and lower stock, where the body includes a buffer tube receiving aperture and the lower stock includes a hollow cavity with a plunger and two concentric springs therein. One or more buttons can be affixed to sides of the plunger in the hollow cavity that can be used to depress the plunger against the force of one or both of the springs. One of the two springs may be shorter than the other and have a greater spring constant than the longer spring. Depressing the plunger against the taller spring may allow a user to adjust the length of pull while greater pressure and engagement of the second spring allows the stock or arm brace to be removed from a buffer tube or receiver extension.

Abstract: A modular stock for a firearm includes a foremost stock, an intermediate stock part and a buttstock. A butt plate is mounted to the buttstock through a first adjustment device. A cheek piece is mounted to the buttstock through a second adjustment device. The first adjustment device includes a first locking and releasing button. The first locking and releasing button is bilaterally operable.

Abstract: A method (20) performed in a network node (4) is provided for alerting about failure of an unmanned aerial vehicle (2). The method (20) comprises receiving (21) a failure report from an unmanned aerial vehicle (2), obtaining (22) an estimated crash point for the unmanned aerial vehicle (2), and sending (23), based on the obtained estimated crash point, warning signals to communication devices (3) residing within a defined area. Methods in an unmanned aerial vehicle and in a network entity, and a network node, unmanned aerial vehicle, network entity, computer programs and computer program products are also provided.

Abstract: A brace apparatus for use with a firearm provides a mounting housing and a brace which is automatically deployable from a first position where the brace is in closer proximity to the mounting housing to a second position where the brace is distanced from the mounting housing, the brace being positioned for resting against a part of the user's body during firing of the firearm.

Abstract: A firearm stock may be provided. The firearm stock may comprise a fore-end portion and a pistol grip portion. The fore-end portion may comprise a fore-end portion cavity and a fore-end insert. The fore-end insert may comprise a fore-end insert reinforcing structure disposed in the fore-end portion cavity. The pistol grip portion may comprise a pistol grip portion cavity and a pistol grip insert. The pistol grip insert may comprise a pistol grip insert reinforcing structure disposed in the pistol grip portion cavity.

Abstract: A stock for a shoulder-fired weapon. The stock includes an articulated trapezoid or parallelogram-shaped structure that includes two blocks respectively forming a rest interface with the body of the weapon and a support for a butt plate, and at least two rigid linking arms, each jointed, at one of its ends, by a pivot link with the rest interface with the body of the weapon and at the other of its ends by a pivot link with the support of the butt plate. The weapon includes at least one locking structure for locking the arms together, in at least one fixed position defining a desired height of the butt plate with respect to the rest interface.

Abstract: A gun stock has a hollow body having a cavity in which a seat is formed; the seat is adapted to receive an insert; the insert has a passage hole for the passage of a bar which has a first end fastened to the body of the gun and a second free end which is threaded and engages a locking nut; a fastener plate is arranged between the locking nut and the insert and has a calibrated hole through which the free end of the bar passes; the fastener plate is arrangeable in different positions with respect to the insert in order to change the inclination of the stock with respect to the line of sight of the gun. The stock has additional systems for adjusting the distance between the buttstock and the trigger, the height of the comb, the length of the trigger pull, and the shape of the grip.

Abstract: In broad embodiment, the present invention is a mechanism that allows one to impede the movement of a firearms adjustable and or collapsible butt stock. The device wraps around the buffer tube or stock shaft of a firearm and prevents to the movement of the previously adjustable portion of the firearm stock. The variable shaft locking device can be easily attached and removed, and allows a user to temporarily “lock” the adjustable portion without damaging the firearm or impeding its functionality.

Abstract: A firearm stock with a reinforcing member and related methods are disclosed. A reinforcing member has a proximal end having at least one proximal tab shaped to engage a firearm housing, and a distal end having a locking pin engagement surface and at least one distal tab shaped to engage at least one of the firearm housing or a battery tube. The member also has a longitudinal axis extending between the proximal end and the distal end, and a first wall having a longitudinal length greater than a width. The member also has at least one sidewall one of coupled to or unitary with the first wall, and at least one side tab positioned on the sidewall and extending towards a center portion of the reinforcing member.

Abstract: A firearm grip with locking mechanism includes an elongated handgrip body having an elongated opening on the front side and a generally hollow interior space. A pair of doors are pivotally secured to the handgrip body to move between a closed position, and an open position. A firearm engagement body is pivotally secured along the top end of the handgrip body for attachment to a firearm receiver at a location adjacent to the trigger assembly. The handgrip body moves between a FIRE position where the handgrip body is positioned perpendicular to the engagement body, and a SAFE position where the handgrip body is positioned parallel to the engagement body and the firearm trigger assembly is located within the interior space of the handgrip body.

Abstract: The invention relates to a device for adjusting the orientation of a rear stock of a portable firearm relative to a barrel of the portable firearm, comprising a ball joint, which is arranged between the rear stock and a front part fixedly connected to the barrel and which has a first joint part connected in a positionally fixed manner to the front part or the rear stock and a second joint part, which can be pivoted relative to the first joint part and which is connected in a positionally fixed manner to the other of the rear stock or the front part, wherein the first joint part and the second joint part are connected to each other in a pivotable and fixable manner by means of a releasable and fixable fixing apparatus, the fixing apparatus has at least one fixing element, the first joint part has a spherical, in particular ball-shaped, joint head, which is mounted in a corresponding recess of the second joint part, the fixing apparatus has a clamping part, which likewise has a recess for at least partly receiv

Abstract: A device for positioning a stock member on a gunstock includes at least one guide element which is disposed on the stock member and movably guided in a receiving member, and a positioning mechanism which comprises at least one retaining member dedicated to the guide member and an operating member for moving the retaining member between a retaining position for locking the guide member into position and a release position for changing the position of the guide member. To provide for an easily adjustable limit stop position of the stock member, a position-adjustable stop member for limiting the extending movement of the guide member is dedicated to the one or more guide members.

Abstract: Adjusting the length of firearms using stock assembly systems are provided. In one embodiment, a stock assembly comprises: a receiver extension having a first interface configured to mate with a second interface of a stock; the first interface comprising a base portion, a plurality of first edges, and a plurality of first grooves; the second interface comprising a slot portion, a plurality of second edges, and a plurality of second grooves; wherein the plurality of first edges are in contact with the plurality of second grooves and the plurality of first grooves are in contact with the plurality of second edges of the second interface to mate the stock with the receiver extension; and wherein the base portion of the first interface is in contact with the slot portion of the second interface allowing the stock to slide along a horizontal axis of the receiver extension.

Abstract: A shoulder fired weapon comprising: a lower receiver, a magazine removably attachable to the lower receiver; a buffer tube attached to the lower receiver; a buttstock attached to the buffer tube, and where the buttstock can rotate with respect to the lower receiver and the buttstock can lock into place. A rotating buffer apparatus comprising: a front end buffer tube, the front end buffer configured to screw into a lower receiver of a shoulder fired weapon; a rear end buffer tube, aligned with and adjacent to the front end buffer tube; the rear end buffer tube configured to attach to a buttstock; and where when the rotating buffer apparatus is installed into the shoulder fired weapon, the buttstock can rotate with respect to the lower receiver and the buttstock can lock into place.

Abstract: Provided is a firearm lower receiver configured to mate with an AR-pattern, auto-loading upper receiver assembly. The lower receiver has a body and a hinge mechanism having a fixed part integral to the lower receiver body and a moving part to which a buffer tube is mounted. The hinge is movable between an extended, operating position where the buffer tube is substantially aligned with the bolt carrier and a folded position. The fixed part includes a carrier blocking member movable between a blocking position where the blocking member prevents rearward movement of a bolt carrier in the upper receiver and a displaced position. The blocking member is spring biased toward the blocking position. A striker extends from the moving part and is configured to contact the carrier blocking member and move it against the spring bias to the displaced position when the hinge mechanism is in the extended, operating position.

Abstract: A stabilizing device for a small arms weapon is disclosed. The stabilizing device may include a housing, a starboard side support member, a port side support member, and a primary hinge pin. The primary hinge pin, the starboard side support member, and the port side support member may form a joint. The stabilizing device further may include a webbing. The webbing may include one end secured to the starboard side support member and another end secured to the port side support member. The webbing may form a sling. The sling may be configured and dimensioned to rest on a body disposed between the first base and the second base. The body may be the forearm of an operator grasping the small arms weapon in a single hand. In one embodiment, the stabilizing device for a small arms weapon is connected to a pistol chassis.

Abstract: An index mount for a firearm includes a mounting base, a connector flange and a selectively configurable paddle, joined with the connector flange, and configured to establish a resting surface to index a digit of a user relative to the firearm and consistently establish a particular grip relative to the firearm. The mount can include an indexing element that aligns and/or sets the paddle in first or second positions relative to the mounting base. The paddle can be configured with a forward cant and/or a rearward cant and can be adjusted to fit the user's preferences. The paddle can include an upper surface canted at an outward angle between 55° and 85°, inclusive. A related method of use is provided.

Abstract: A novel and improved rotating stock butt and rotating sighting device that applies to a shoulder-fired firearm where the firing mechanism and the sighting device are elevated above the stock butt when in a horizontal shooting position. This system comprises a cooperation between the rotating stock butt and the rotating sighting device that allows the firing mechanism and the barrel to be off set to either the right or to the left of the stock butt while the rotating sighting device and sight bead remains on the top center of the firearm. This allows the shooter to mount the gun with very little head movement.

Abstract: A universal mounting device for a pistol having a rear extended connecting extension, wherein the universal mounting device includes a buttstock body having an elongated holding channel for slidably receiving the connecting extension therealong, and a locking mechanism provided at the buttstock body to selectively adjust a diameter size of the holding channel. The locking mechanism is actuated to reduce the diameter size of the holding channel for tightly pressing an inner wall of the holding channel at an outer wall of the connecting extension so as to lock up the connecting extension at the holding channel.

Abstract: A rapidly adjustable receiver extension preferably includes a modified receiver extension and a ramped indexing plate. The modified receiver extension includes an indexing slot machined in a standard receiver extension to receive the ramped indexing plate. The ramped indexing plate is retained in the indexing slot with any suitable retention method. The ramped indexing plate preferably includes a plurality of inclined surfaces with a flat indexing slot disposed between two adjacent inclined surfaces. A length of the flat indexing slot is slightly longer than a diameter of a locking pin. A threaded tap is formed in each inclined surface for receiving a set screw or the like as a stop. One end of the rapidly adjustable receiver extension is attached to a rifle and an opposing end of the modified receiver extension is retained in a butt stock.

Abstract: A firearm recoil pad assembly includes a base plate, a pad plate, and a pad, and can be secured to the buttstock of a firearm. The base plate has a bore formed therethrough, and the pad plate has a bore formed therethrough. A bolt extends through the bores in the base plate and the pad plate and couples with a nut to secure the pad plate to the base plate. The pad is affixed to the pad plate and includes a rear face formed with compression channels extending across the rear face, and opposed left and right sides. The rear face of the pad is canted toward one of the left and right sides.

Abstract: The present disclosure generally is related to a modular chassis/stock system for a rifle type firearm that incorporates a recoil reduction assembly. The chassis/stock system includes a buttstock assembly that is configured to include an elongated housing for receiving a mounting body of the recoil reduction assembly.

Abstract: A firearm stock with a reinforcing member and related methods are disclosed. A reinforcing member has a proximal end having at least one proximal tab shaped to engage a firearm housing, and a distal end having a locking pin engagement surface and at least one distal tab shaped to engage at least one of the firearm housing or a battery tube. The member also has a longitudinal axis extending between the proximal end and the distal end, and a first wall having a longitudinal length greater than a width. The member also has at least one sidewall one of coupled to or unitary with the first wall, and at least one side tab positioned on the sidewall and extending towards a center portion of the reinforcing member.

Abstract: An improved buttstock for a firearm is disclosed, the buttstock comprising a comb, the comb comprising an indexing surface on a comb extension, the comb extension being configured to move between an expanded configuration and a retracted configuration; a buttstock, the buttstock comprising a buttpad extension indexing surface, the buttstock being configured to move between an expanded configuration and a retracted configuration. A common lock can secure both the comb extension and the buttpad extension in a fixed position. The common lock can release one or both of the comb extension and the buttpad extension to slide with respect to the body of the stock.

Abstract: A stock for a firearm. In some embodiments, the stock is configured for bi-directional folding to either side of a receiver of the firearm. In some embodiments, the stock is configured for length adjustment. A biasing element is provided for the length adjustment that biases a proximal (butt) subassembly of the stock against the shoulder of the user. The user can adjust the length of the stock by moving his or her shoulder fore and aft against the butt of the stock. The bi-directional folding and the shoulder length adjustment aspects may be incorporated into a single embodiment.

Abstract: An adjustable buttstock may be attachable to a buffer tube with a plurality of position slots. The adjustable buttstock may include a body slidably attached to the buffer tube, a butt attached to the body, and a lever assembly rotatably attached to the body.

Abstract: A butt structure for a toy gun includes: a butt body, a rear part, two guide rods and a press locking device. The guide rods are inserted at two sides of the butt body and can move together with the rear part. The press locking device is connected to the butt body. The guide rods each include a front cavity and rear cavities. Each of the front cavities includes a hook portion on an inner front surface thereof, and each of the engaging ends includes a front protrusion. Operating the press locking device can make the engaging ends engage with the front or the rear cavities, so as to adjust the position of the rear part back and forth. When the hook portions engage with the front protrusions, the guide rods are fixed to prevent the rear part from being pulled out backwards.

Abstract: In one aspect, a retractable buttstock may include a buttpad that allows the user to rest the weapon on their shoulders; a pair of extension rods; a buffer tube that allows the buttstock to attach to the firearm; and a buffer tube housing to receive the buffer tube. In an exemplary embodiment, the extension rods are hollow and a resilient unit is received in each extension rod. The extension rods have a pair of first positioning grooves and a pair of second positioning grooves to engage with stoppers of the buffer tube housing. The buttstock can be fully-extended and collapsed depending on whether the stoppers engage with the first or second positioning grooves. It is noted that the user can operate the retractable buttstock with one hand.

Abstract: A length adjustable butt pad assembly for a firearm is shown and described. The length adjustable butt pad assembly includes a butt plate having an elongated butt plate shaft and a butt plate base. The butt plate base includes an elongated mounting tube extending in a horizontal direction and receives the butt plate shaft. The elongated butt plate shaft is rotatable in the mounting tube between a first locked position and a second released position. The second released position allows for an axial displacement of the elongated butt plate shaft between at least two fixed locations.

Abstract: A rifle butt stock adjustment actuator having a body with a U-channel configured to fit a base of a telescoping rifle butt stock and operably connect to a butt stock adjustment mechanism is disclosed. The actuator includes a “push” pair of ergonomically shaped finger pressure surfaces disposed on the body and a “pull” pair of ergonomically shaped finger pressure surfaces disposed on the body. When attached to the base of a telescoping rifle butt stock and operably connected to the butt stock adjustment mechanism, pressure applied to the push pair of pressure surfaces actuates the butt stock adjustment mechanism and telescopes the rifle butt stock into a shorter configuration. Pressure applied to the pull pair of pressure surfaces actuates the butt stock adjustment mechanism and telescopes the rifle butt stock into a shorter configuration. Push and pull actuation may include both a torque and translation force.

Abstract: An improved tactical adaptive rifle stock is taught which includes a multi-axis adjustable buttstock, and a fore-end consisting of a receiver portion and a forestock, together forming a combined set, which is attached to a flanged stock bolt of the buttstock. The receiver portion includes a cavity forming a receiver bedding interface surface precluding peripheral interference. The receiver portion has a recoil lug pocket with threaded fasteners engaging a rifle action recoil lug. A locking wedge is positioned in a recess of the receiver portion and dovetail grooves are included in a forward end. The forestock incorporates dovetail grooves that mate with the receiver portion grooves when secured with a wedge and wedge threaded fastener. The buttstock, receiver portion and forestock have lightening areas for reducing overall weight. A second embodiment utilizes an adapter, a connector and an AR-15 style handguard or a suppressor, replacing the forestock and a third embodiment employs a one piece fore-end.

Abstract: A stock for a firearm includes an attachment member shaped to attach the stock to a firearm, a stock member pivotally attached to the attachment member so that the stock member is pivotable between an aligned position and a folded position, and a stock body. One of the stock member and stock body includes a plurality of stock attachment locations so that the stock member and stock body are connected together at one of the plurality of stock attachment locations.

Abstract: The present invention provides a sporterized firearms stock ensemble configured to be coupled to a long firearm having a pistol grip interface. The firearm stock ensemble includes a cheek-rest and a gunstock assembly. The cheek-rest is configured to be coupled to a recoil buffer tube of the long firearm. The gunstock assembly includes an inline grip portion, a butt-plate and an elongated support section configured to couple the grip portion to the butt-plate.

Abstract: A rotating gun stock for a firearm having a gun stock fore-end, the rotating gun stock comprising: a rotary positioning disc fixed within the fore-end, the fore-end having a distal end, a proximal end, and a longitudinal axis, the rotary disc fixed within the fore-end substantially at the distal end; the rotary disc further having a first and a second face and a center coaxial with the longitudinal axis, the first face directed towards the proximal end and the second face having a plurality of concentric accepting slots and a radial slot formed therein, the radial slot formed to communicate perpendicularly with the plurality of accepting slots; a butt positioned substantially perpendicularly to the fore-end at the distal end, the butt rotatably attached to the center of the rotary positioning disc, the butt constrained to rotate only about the longitudinal axis; a selector inserted within a selector slot in the butt, the selector protruding into the radial slot and thereby successively into the plurality of a

Abstract: A bump stock and interface system for a semi-automatic firearm. In use, the user grasps a handle with one hand and places an index finger of the same hand firmly on a finger rest. When intending to fire a round of ammunition, the user pushes the firearm receiver forward with another hand so that the trigger collides with the immobilized finger on the finger rest. Recoil force separates the trigger from the user's finger on the finger rest. The user again pushes forward the receiver to repeat the firing cycle. A lock is selectively activated to arrest longitudinal movement of the firearm relative to the handle, thereby returning the firearm to normal semi-automatic functionality. The lock includes a retractable pin having a tip that rides in a track having a rear stop to limit over-travel of the handle.

Abstract: A collapsible rifle stock which provides a significantly shorter and more compatible stock designs. The stock includes a recoil pad, a buffer tube assembly, a buffer-receiving cavity, a track, a locking mechanism, and a release mechanism. The buffer-receiving cavity traverses through the recoil pad to facilitate a short collapsed configuration for the stock. The track is adjacently connected to the recoil pad, oriented parallel to a central axis of the buffer-receiving cavity. The buffer tube assembly attaches the stock to the rifle. The buffer tube assembly is slidably engaged along the track to allow for relative movement. The locking mechanism in conjunction with the release mechanism allow the user to position the stock into a collapsed and an extended configuration. The locking mechanism is mechanically integrated in between the track and the buffer tube assembly. The release mechanism is mechanically integrated in between the track and the recoil pad.

Abstract: A gun system includes a gun body; a hand grip rotatably attached to the gun body; and an attachment device rigidly attached to the gun body and to the hand grip. The hand grip is secured solely to the gun body via the attachment device and the attachment device is configured to allow movement of the hand grip relative to the gun body.

Abstract: An adjustable butt stock adapter assembly may provide for vertical and rotational adjustment. A serrated plate may be positioned between an adapter with grooves for establishing a rotational position with the serrated plate, and a butt plate having serrations for establishing a vertical relationship with the serrated plate. The serrated plate may be operatively attached to a spring collar mounted in the adapter, such that pulling the serrated plate away from the collar and adapter overcomes the spring force and allows for adjustment of the rotational position. The butt plate may connect to the serrated plate through an engagement mechanism, such that disengaging the engagement mechanism allows for adjustment of the vertical position.

Abstract: A firearm stock connection system that includes a grip with a first hole, a stock system with a second hole, and a button positioned within the first hole and extending through the second hole in an extended position. The stock system may include a frame member, a plate, an extender tube, and a lock. The extender tube may be threaded onto a threaded projection of the plate. The lock may prevent rotation of the extender tube with respect to the threaded projection. The extender tube may include structures that engage a portion of the lock. The structures may be a plurality of slots. The stock system may include a recoil device. The recoil device may be filled with gas. The grip may include a first end, a second end, a gap positioned between the first and second ends, and a bolt aperture extending from the first end to the gap.

Abstract: A modular firearm comprising an adjustable modular buttstock assembly. The buttstock assembly can include a frame with a central opening. A comb assembly having a cheek piece and a butt plate assembly having a recoil pad each can be mounted to the frame by an adjustment apparatus. Each adjustment apparatus can include of a guide post and/or a threaded adjustment post each received in respective bores in the frame to adjust the positions of the cheek piece and recoil pad. The adjustment apparatus also can include a locking or engagement feature that can selectively increase the friction between the frame and the guide post and/or adjustment post, to help prevent the translation of the guide post and/or adjustment post in the bore in the frame to fix the comb assembly and butt plate assembly in desired positions with respect to the frame.

Abstract: A mechanism, which may be integral with the gun parts and which permits the butt of a shouldered firearm, that either shoots shot or projectiles, to be pivoted about an axis, or which is integral to the gun parts whereby the stock butt is pivoted by design and fixed in place, or which may be manufactured as an after-market item, and which permits the butt of a shoulder-fired gun to be pivoted about a central point. This final design only applies to any shouldered firearm where firing mechanism, barrel, and sighting device are elevated above stock butt.