A device implementable on a firearm includes an adjustable multi-angle grip. The grip includes an upper portion and a lower portion. The upper portion is configured to be coupled to a receiver portion of the firearm. The lower portion is pivotably coupled to the upper portion via a hinge on a front side of the grip such that an angle between a longitudinal axis of the lower portion and a longitudinal axis of a barrel of the firearm is variable.
Various examples of a configurable cable holder for firearms are described. One example of the configurable cable holder includes an elastic band. The elastic band is configured to wrap around a portion of the firearm in one of a plurality of configurations when installed on the firearm. The elastic band has a clamp portion configured to elastically clamp a portion (e.g., cable) of an accessory of the firearm.
An apparatus implementable on a firearm includes a lens, a light source, and a control unit coupled to control the light source. The light source is configured to project an image of an aim point onto the lens. In operation, the control unit is configured to vary a size of the image projected onto the lens by the light source without changing a shape or an outer contour of the image.
Various examples of a detachable trigger guard for firearms are described. The trigger guard as a monolithic piece has components including a main body, a first connection portion at a first distal end of the main body, and a second connection portion at a second distal end of the main body opposite the first distal end thereof. At least one of the first connection portion and the second connection portion of the detachable trigger guard is elastically deformable to allow the detachable trigger guard to be removably coupled to a receiver portion of the firearm below a trigger of the firearm with the first connection portion coupled to either or both of a first pair of through holes on the receiver portion of the firearm and with the second connection portion coupled to either or both of a second pair of through holes on the receiver portion of the firearm.
A device implementable on a firearm includes a housing, a connection portion and a support portion. The housing is configured with a void therein and has a first end and a second end opposite the first end. The connection portion is disposed at the first end of the housing and configured to couple the device to the firearm. The support portion is configured to be received in the void of the housing and, responsive to being pressed from two opposite sides, can retractably extend out of the void of the housing through an opening at the second end of the housing to form a bipod.
A device implementable on a firearm includes a charging handle configured to be mounted on a lateral side of a slide of the firearm by a screw and without removal of a rear sight or a slide cover plate at a breech end of the slide. The charging handle includes a handle member and at least one screw. The handle member is adapted to engage the lateral side of the slide. The handle member has at least one threaded through hole traversing a body of the handle member. The at least one screw is configured to secure the handle member to the slide through the at least one threaded through hole when the at least one threaded through hole is aligned with a tapped hole on the slide.
A device implementable on a firearm includes a magazine release having a magazine catch and a magazine release button coupled to the magazine catch. When the magazine release is installed on the firearm, the magazine catch is configured to hold a magazine in a magazine well of the firearm when the magazine release button is not pressed and the magazine catch is configured to release the magazine from the magazine well when the magazine release button is pressed. The magazine release button includes a coupler configured to couple the magazine release button to the magazine catch. The magazine release button also includes a detachable pedal slidingly attachable to the coupler.
A device implementable on a firearm includes an ambidextrous safety selector switch. The ambidextrous safety selector switch is configured to be installed on a receiver portion of the firearm and operable by a first finger of a hand of a user on a first side of the receiver portion and by a second finger of the hand of the user on a second side of the receiver portion opposite the first side thereof when installed on the receiver portion.
A device implementable on a firearm includes a main body and a paddle portion. The main body includes a bolt catching portion, a first protrusion, a second protrusion, and a pivot portion connecting the bolt catching portion, the first protrusion and the second protrusion. The paddle portion is detachably attached to the first protrusion and the second protrusion of the main body. The paddle portion includes a first paddle, a second paddle, and a connecting portion connecting the first paddle and the second paddle. The pivot portion is pivotably coupled to the wall to allow the bolt catching portion to pivot between a bolt releasing position and a bolt stopping position. The first paddle is coupled to the first protrusion and the second paddle is coupled to the second protrusion.
A device implementable on a firearm includes a grip frame having a frame portion and a grip portion. The frame portion is configured to receive a slide assembly of the firearm thereon. The grip portion is configured to receive a magazine of the firearm therein. The frame portion has a physical feature on at least a left side or a right side thereof functioning as a thumb rest.
Various examples of a tool-free dust cover for firearms are described. The dust cover is a monolithic piece having a cover plate, a first connection portion, and a second connection portion, with at least one of the first connection portion and the second connection portion being elastically deformable to allow the dust cover to be pivotably coupled to a receiver portion of the firearm. The first connection portion is received in a cavity of a first hinge knuckle on the receiver portion next to a first long side of an ejection port of the receiver portion. The second connection portion is received in a cavity of a second hinge knuckle on the receiver portion next to the first long side of the ejection port. When in an open position, the cover plate uncovers the ejection port. When in a closed position, the cover plate covers the ejection port.
A device implementable on a firearm includes an adjustable multi-angle grip. The grip includes an upper portion and a lower portion. The upper portion is configured to be coupled to a receiver portion of the firearm. The lower portion is pivotably coupled to the upper portion via a hinge on a front side of the grip such that an angle between a longitudinal axis of the lower portion and a longitudinal axis of a barrel of the firearm is variable.
A device is movably attachable to an upper receiver of a firearm adjacent to a rear end of an ejection port on the upper receiver. The device is configured to move linearly in directions parallel to a longitudinal axis of the upper receiver to function as a forward assist to cause a bolt carrier of the firearm to move forward with respect to the upper receiver. The device comprises a shell deflector having a deflection surface configured to deflect spent casings ejected out of the ejection port when the firearm is in operation.
A device implementable on a firearm includes a forward assist assembly which is configured to be installed on an upper receiver of the firearm. When pressed, the forward assist assembly moves along a longitudinal axis thereof to engage with a serration cut on a bolt carrier of the firearm to push the bolt carrier forward with respect to the upper receiver when pressed. The forward assist assembly includes a modular component slidingly attachable to and detachable from the forward assist assembly.
A device implementable on a firearm includes a one-piece sight functioning as a rear sight or a front sight when installed on the firearm. The one-piece sight includes a notch and a user-facing side configured with a first surface aligned with the notch and a second surface on two opposite sides of the first surface. The first and second surfaces are sloped at first and second angles, respectively, to reflect an ambient light at different angles.
A castle nut has a groove around an exterior circumference thereof. An end plate has a through hole extending in a direction perpendicular to a longitudinal axis of a firearm. When a buffer tube is threaded onto a lower receiver of the firearm with the buffer tube traversing through the castle nut and the end plate, the castle nut can be screwed in a direction toward the lower receiver to fasten the end plate against the lower receiver. When the end plate is fastened against the lower receiver by the castle nut, the securing device can be screwed into the through hole of the end plate such that a portion of the securing device is engaged with the groove of the castle nut to prevent the castle nut to be loosened by being unscrewed in a direction away from the lower receiver.
A device implementable on a firearm includes a magazine funnel and a securing mechanism. The magazine funnel is configured to couple to an opening at a bottom of a grip of the firearm. The magazine funnel has a first side and a second side opposite the first side. The securing mechanism protrudes from the first side of the magazine funnel such that, when a gap related to the securing mechanism is expanded while the magazine funnel is coupled to the opening with the securing mechanism inserted into a void of the grip, the securing mechanism secures the magazine funnel to the grip of the firearm.
An apparatus implementable on a pistol includes a compensator and a guide rod. The guide rod has a front distal end and a rear distal end opposite the front distal end. The compensator includes a muzzle brake having a recoil-reduction device, a first through hole and a second through hole. When the compensator is implemented on the pistol: (a) the recoil-reduction device redirects propellant gases to counter a recoil force upon firing of a round of ammunition by the pistol; (b) the first through hole is aligned with a barrel of the pistol to allow firing of the round of ammunition, and (c) the second through hole receives the front distal end of the guide rod therein such that an interface between the guide rod, the muzzle brake and a slide of the pistol is keyed to prevent rotation of the guide rod.
A modular trigger control unit Is configured to be removably installed on a grip frame of a firearm and includes a locking block and a locking block pin. The trigger control unit has a protruding tab protruding rearward. The locking block includes slide rails extending forward, with each slide rail of the pair of slide rails having a flat wall extending downward with respect to the grip frame when the trigger control unit is installed on the grip frame. The trigger control unit is secured to the grip frame by: (1) the protruding tab received in a recess on an interior wall of a beavertail portion of the grip frame; and (2) the locking block pin traversing through a through hole on each flat wall such that removal of the trigger control unit from the grip frame requires removal of the locking block pin.
A scope mount implementable on a firearm includes a base and an adjustable cantilever. The base has a first primary side and a second primary side opposite the first primary side, with the second primary side configured to accommodate and mount onto a rail on the firearm. The adjustable cantilever is slidingly installable on the first primary side of the base and is configured with a scope mounting feature to receive a scope thereon. The adjustable cantilever can be fixable at one of plural positions along a longitudinal axis of the base and on the base such that a total length of the scope mount, measured from one distal end of the scope mount to an opposite distal end of the scope mount, varies between a shortest length and a longest length according to at which one of the positions on the base the adjustable cantilever is fixed.
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.
An apparatus implementable on a firearm may include a takedown pin and a pivot pin. The takedown pin holds together a rear portion of lower and upper receivers of the firearm. The pivot pin holds together a front portion of lower and upper receivers of the firearm. Each of the takedown pin and pivot pin respectively includes a head and a generally cylindrical shank extending from the head toward a distal end thereof opposite the head. The shank is configured with: (1) a first groove track extending along a longitudinal axis of the shank, (2) a second groove track parallel to the first groove track and extending along the longitudinal axis of the shank, and (3) a linking groove track extending around the longitudinal axis of the shank and linking the first groove track and the second groove track.
A device implementable on a firearm includes a magazine extension housing and a locking plate. The magazine extension housing is attachable to a bottom opening of a magazine well of a magazine that is implementable on the firearm. The locking plate is receivable in a portion of the magazine extension housing such that the locking plate is configured to lock the magazine extension housing to the magazine well when the magazine extension housing is attached to the magazine well of the magazine.
A device implementable on a firearm includes a magazine extension housing, a pocket clip and a securing device. The magazine extension housing is attachable to a bottom opening of a magazine well of a magazine that is implementable on the firearm. The securing device is configured to secure the pocket clip to the magazine extension housing.
Various examples of a tool-free dust cover for firearms are described. The dust cover is a monolithic piece having a cover plate, a first connection portion, and a second connection portion, with at least one of the first connection portion and the second connection portion being elastically deformable to allow the dust cover to be pivotably coupled to a receiver portion of the firearm. The first connection portion is received in a cavity of a first hinge knuckle on the receiver portion next to a first long side of an ejection port of the receiver portion. The second connection portion is received in a cavity of a second hinge knuckle on the receiver portion next to the first long side of the ejection port. When in an open position, the cover plate uncovers the ejection port. When in a closed position, the cover plate covers the ejection port.
An apparatus implementable on a firearm includes a quick-detach (QD) handguard assembly which includes a handguard and a locking mechanism. The handguard has a hollow therein allowing the handguard to surround a barrel of the firearm with the barrel traversing through the hollow along a longitudinal axis of the handguard. The locking mechanism is coupled to the handguard. The locking mechanism includes a QD lever configured to lock the handguard to a barrel nut of the firearm and unlock the handguard from the barrel nut.
A quick-disconnect (QD) sling swivel includes a main body receivable in a socket on a firearm, a locking mechanism coupled to the main body, and an actuation mechanism coupled to the locking mechanism and depressible in a direction generally perpendicular to a longitudinal axis of the QD sling swivel. When the actuation mechanism is depressed, the locking mechanism is in a first position such that the main body is decouplable from and is freely movable in and out of the socket. When the at least one actuation button is not depressed with a portion of the main body received in the socket, the locking mechanism is in a second position such that the main body is interlockingly received in the socket with the locking mechanism engaged therewith.
F16B 21/06 - Releasable fastening devices with snap action
F41C 33/00 - Means for wearing or carrying smallarms
F16B 21/16 - Means without screw-thread for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding it; Stud-and-socket releasable fastenings without screw-thread by separate parts with grooves or notches in the pin or shaft
Various examples of a modular trigger control unit for firearms are described. A trigger mechanism housing, as part of the modular trigger control unit, can be removably received in a grip frame of a semi-automatic firearm such that, when received in the grip frame, a serial number of the firearm displayed on the trigger mechanism housing faces a back side of the grip frame and is visible through an opening on the back side of the grip frame.
Various examples of a modular trigger control unit for firearms are described. The trigger control unit can be removably installed on a grip frame and installed between the grip frame and a slide assembly of a semi-automatic firearm. The trigger control unit includes at least a trigger pin and a trigger pivotable around the trigger pin when pulled. In response to the trigger being pulled by a user when the trigger control unit is installed between the grip frame and the slide assembly, a firing pin lug of a striker-firing mechanism in the slide assembly is released thereby allowing a striker of the striker-firing mechanism to move forward with respect to the slide assembly. Moreover, the trigger control unit is secured to the grip frame at least by the trigger pin such that removal of the trigger control unit from the grip frame requires removal of the trigger pin.
An apparatus implementable on a pistol includes a compensator and a guide rod. The guide rod has a front distal end and a rear distal end opposite the front distal end. The compensator includes a muzzle brake having a recoil-reduction device, a first through hole and a second through hole. When the compensator is implemented on the pistol: (a) the recoil-reduction device redirects propellant gases to counter a recoil force upon firing of a round of ammunition by the pistol; (b) the first through hole is aligned with a barrel of the pistol to allow firing of the round of ammunition, and (c) the second through hole receives the front distal end of the guide rod therein such that an interface between the guide rod, the muzzle brake and a slide of the pistol is keyed to prevent rotation of the guide rod.
Examples of a self-releasing magazine and a magazine follower assembly thereof for firearms are described. The magazine follower assembly includes a casing and a self-releasing actuator received in the casing. When in use, the magazine follower assembly generally moves along a first axis with respect to the casing between a first position in the magazine when the magazine is fully loaded and a second position in the magazine when the magazine contains no ammunition cartridge. When the magazine follower assembly is at the second position in the magazine, the self-releasing actuator is configured to actuate a magazine release mechanism of the firearm to disengage the magazine from the firearm so that the magazine is detachable from the firearm.
F41A 9/66 - Arrangements thereon for charging, i.e. reloading
F41A 17/38 - Magazine safeties locking the magazine in the gun
F41A 9/67 - Arrangements thereon for charging, i.e. reloading having means for depressing the cartridge follower, or for locking it in a depressed position
36.
Firearm receiver pins for quick disassembly and assembly
An apparatus implementable on a firearm may include a takedown pin and a pivot pin. The takedown pin holds together a rear portion of lower and upper receivers of the firearm. The pivot pin holds together a front portion of lower and upper receivers of the firearm. Each of the takedown pin and pivot pin respectively includes a head and a generally cylindrical shank extending from the head toward a distal end thereof opposite the head. The shank is configured with: (1) a first groove track extending along a longitudinal axis of the shank, (2) a second groove track parallel to the first groove track and extending along the longitudinal axis of the shank, and (3) a linking groove track extending around the longitudinal axis of the shank and linking the first groove track and the second groove track.
A castle nut has a groove around an exterior circumference thereof. An end plate has a through hole extending in a direction perpendicular to a longitudinal axis of a firearm. When a buffer tube is threaded onto a lower receiver of the firearm with the buffer tube traversing through the castle nut and the end plate, the castle nut can be screwed in a direction toward the lower receiver to fasten the end plate against the lower receiver. When the end plate is fastened against the lower receiver by the castle nut, the securing device can be screwed into the through hole of the end plate such that a portion of the securing device is engaged with the groove of the castle nut to prevent the castle nut to be loosened by being unscrewed in a direction away from the lower receiver.
A detachable firearm attachment implementable on a firearm includes a main body having a firearm attachment side and an accessory attachment side. The firearm attachment side is configured to attach to a surface of a part of the firearm. The accessory attachment side includes a socket configured such that a detachable device is coupled to and decoupled from the socket along an axis of the socket that is at an angle less than 90° from the surface of the part of the firearm. The socket is further configured with one or more indentation chambers on a surface of a cavity of the socket in which the detachable device is received when the detachable device is coupled to the socket such that, when the detachable device is coupled to the socket, a rotation of the detachable device is prevented by the one or more indentation chambers.
Examples of a self-releasing magazine and a magazine follower assembly thereof for firearms are described. The magazine follower assembly includes a casing and a self-releasing actuator received in the casing. When in use, the magazine follower assembly generally moves along a first axis with respect to the casing between a first position in the magazine when the magazine is fully loaded and a second position in the magazine when the magazine contains no ammunition cartridge. When the magazine follower assembly is at the second position in the magazine, the self-releasing actuator is configured to actuate a magazine release mechanism of the firearm to disengage the magazine from the firearm so that the magazine is detachable from the firearm.
F41A 9/66 - Arrangements thereon for charging, i.e. reloading
F41A 17/38 - Magazine safeties locking the magazine in the gun
F41A 9/67 - Arrangements thereon for charging, i.e. reloading having means for depressing the cartridge follower, or for locking it in a depressed position
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.
Examples of a self-releasing magazine and a magazine follower assembly thereof for firearms are described. The magazine follower assembly includes a casing and a self-releasing actuator received in the casing. When in use, the magazine follower assembly generally moves along a first axis with respect to the casing between a first position in the magazine when the magazine is fully loaded and a second position in the magazine when the magazine contains no ammunition cartridge. When the magazine follower assembly is at the second position in the magazine, the self-releasing actuator is configured to actuate a magazine release mechanism of the firearm to disengage the magazine from the firearm so that the magazine is detachable from the firearm.
F41A 9/67 - Arrangements thereon for charging, i.e. reloading having means for depressing the cartridge follower, or for locking it in a depressed position
F41A 9/70 - Arrangements thereon for discharging, e.g. cartridge followers or discharge throats
42.
Devices and Methods for converting collapsible firearm stocks
Devices and method for converting collapsible firearm stocks are provided. In one embodiment, a conversion device for converting a stock is provided, the stock comprising a locking pin, configured to slide along a receiver extension having a plurality of position holes and lock into position, the conversion device comprising: a first insert having a first plug configured to insert into a first position hole of the plurality of position holes; a second insert having a second plug configured to insert into a second position hole of the plurality of position holes; wherein inserting the first and second plugs into the first and second position holes, respectively, covers all of the plurality of position holes except for a single position hole for receiving the locking pin of the stock; and wherein the single position hole converts the stock from being collapsible to fixed on the firearm.
A firearm blast reduction device installable on a muzzle of a firearm may include a lock device, a muzzle device and a muzzle shroud. When assembled together, the muzzle shroud faces a front side of the firearm and the muzzle device faces a rear side of the firearm, with the lock device received in the muzzle device and between the muzzle device and the muzzle shroud. To install, the muzzle shroud is rotated in one direction to lock the firearm blast reduction device on the muzzle. To uninstall, the muzzle shroud is rotated in an opposite direction to release the firearm blast reduction device from the muzzle.
A firearm accessory connecting device to be mounted on a rail interface system has two locking mechanism and alignment relief lugs by which the device can be aligned and secured onto either a KeyMod rail interface or an M-LOK rail interface. The two locking mechanisms situated at a first front-end and a second rear-end of the connecting device and defined by a screw hole whereby a screw will engage the top surface of the connecting device and extend through the screw hole to the interior surface of the rail interface wherein a nut will be used to secure the screw in position and hence the mount onto the rail. The alignment lugs located at specific distances along the bottom surface of the connecting device will be slidably attached and aligned onto the rail interface.
An apparatus implementable on a firearm may include a takedown pin and a pivot pin. The takedown pin holds together a rear portion of lower and upper receivers of the firearm. The pivot pin holds together a front portion of lower and upper receivers of the firearm. Each of the takedown pin and pivot pin respectively includes a head and a generally cylindrical shank extending from the head toward a distal end thereof opposite the head. The shank is configured with: (1) a first groove track extending along a longitudinal axis of the shank, (2) a second groove track parallel to the first groove track and extending along the longitudinal axis of the shank, and (3) a linking groove track extending around the longitudinal axis of the shank and linking the first groove track and the second groove track.
Flip sight systems having multiple configurations for use with firearms in accordance with various embodiments of the invention are disclosed. In one embodiment, a flip sight system is provided, comprising: a front sight assembly comprising: a front base, a front pivot joint; and a front sight; a rear sight assembly comprising: a rear base, a rear pivot joint, and a rear sight; wherein the flip sight system includes a first deployed configuration where the front sight and the rear sight are offset to the attached optics such that the flip sight system operates as primary sights for close range targets, a second deployed configuration where the front sight and the rear sight are in-line with the attached optics such that the flip sight system operates as co-witness or backup sights to the attached optics, a first collapsed configuration for storage, and a second collapsed configuration for storage.
A detachable firearm attachment implementable on a firearm may include a main body and a fastening device. The main body may have a first primary side and a second primary side. The first primary side may be configured to attach to both a first handguard rail system of a first handguard of the firearm and a second handguard rail system of a second handguard of the firearm. The fastening device may be configured to fasten the main body to the first handguard and the second handguard. The first handguard may include a plurality of first openings of a first shape with first dimensions. The second handguard may include a plurality of second openings of a second shape with second dimensions. The first shape and the second shape may be different. The first dimensions and the second dimensions may be different.
patents
