Abstract: A photography stand includes a central pipe and a supporting frame. The top of the central pipe is configured to mount photographic equipment. The supporting frame is connected to the central pipe, and provided adjacent to the bottom of the central pipe. The supporting frame moves relative to the central pipe along the axial direction of the central pipe. The supporting frame is unfolded when moving along the axial direction of the central pipe toward the bottom of the central pipe by a preset distance and then moving continuously toward the bottom of the central pipe. The supporting frame is folded when moving along the axial direction of the central pipe toward the top of the central pipe. According to the photography stand, the supporting frame is unfolded automatically after moving along the axial direction of the central pipe toward the bottom of the central pipe by the preset distance.

Abstract: A foldable pump-action shotgun is disclosed to enable the pump-action shotgun used in hunting to be created in a folding structure, thus providing ease of carriage, wherein the feeding/unloading process of the cartridge is provided.

Abstract: The present invention is related to an Assault Rifle Conversion Kit, which is characterized by being an alternative for modernization, updating and tactical adaptation to existing and new assault rifles through adjustments that involve minor changes in the weapon and that provide a tactical character for its use in special operations and of great demand. The present conversion kit mainly comprises six selected sets of stock set, tactical grip set, second grip set, cover set, reload handle set and forearm set which can be attached to different types of assault rifles, due to the versatility of adaptation they have.

Abstract: Provided is a firearm stock having a butt stock assembly and a lack mechanism. The butt stock assembly pivotable between an extended position and a folded position. The latch mechanism is operable to selectively lock the butt stock assembly in the extended position. The latch mechanism has a latch lever rotatable between open and locked positions and has a tooth that engages a cammed socket. Moving the latch lever toward the locked position tensions the latch lever to bias the butt stock into the extended position without mechanical play.

Abstract: A single-wire serial data communications bus is established between an electronic accessory, such as an optical laser sight, and a host controller, using an externally accessible connector on the electronic accessory generally having another primary purpose, such as connection of a remote switch. The need for more complex connection schemes for calibration and control of the electronic accessory is thus eliminated. Furthermore, the single-wire bus enables a range of other host devices, such as a smart switch or an ambient light sensor module, which may provide more complex control options by sending serial control commands to the unit. Additionally, connected hosts may be parasitically powered through the communications bus to eliminate the need for separate batteries.

Abstract: A brace for stabilizing a handheld device such as a handgun against a user's forearm includes a vertically elongated body adapted to detachably engage a portion of the handheld device, and an arm pivotably connected to a portion of the body. The pivotable arm is selectably moveable between a stowed position wherein the arm is vertically aligned with the body, and a deployed position wherein the arm provides a surface against which a user's forearm is removably receivable to stabilize the handheld device when the body is engaged with the handheld device.

Abstract: A folding stock assembly for a firearm includes a hinge fitting attached to the firearm, a left hinge pin disposed on a left side of the hinge fitting, a right hinge pin disposed on a right side of the hinge fitting, at least one moving member, a rear housing disposed on a rear side of the hinge fitting, a rearward configuration wherein the rear housing is connected to both the left hinge pin and the right hinge pin, a left side folded configuration wherein the rear housing is connected to the left hinge pin and the rear housing is moved toward a left side of the firearm, and a right side folded configuration wherein the rear housing is connected to the right hinge pin and the rear housing is moved toward a right side of the firearm.

Abstract: An apparatus for stabilizing firearms is disclosed. The apparatus comprises a body having a left side module and a right side module secured together by a combination of locking mechanisms. An extendable rail with a support brace provided at the rear end is connected to the body of the apparatus. Further, a back securement disposed at the bottom side of the body, wherein the back securement is connected to the left side module of the body using a first side securement and the right side module of the body using a second side securement. Furthermore, a key for locking the extendable rail in a plurality of configurations is provided. Herein, the key is inserted through one or more keyholes provided in the extendable rail and a socket provided at the rear end of the body.

Abstract: Embodiments of the invention discussed herein surround cleaning of firearms which are configured to pass through internal aspects—such as through a barrel and/or breach of a firearm. Embodiments include the use of various cleaning elements combinable with each other to provide a faster and more efficient cleaning of internal aspects of a firearm.

Abstract: Magazine holders for firearms, including two actuating elements and a spring, where the first actuating element-has a locking extension for the temporary attachment of a magazine and a first actuating extension, the second actuating element has a second actuating extension, and where the two actuating elements are (operatively) connected to one another such that the locking extension releases the fastening of the magazine counter to the tension of the spring during a release movement onto one of the two actuating elements. Each actuating element is designed as one piece, in that the second actuating element has a bearing extension on an end section facing away form the second actuating extension and connected by a connecting section, and the first actuating element has a substantially shape-complementary bearing opening for receiving the bearing extension in an assembling position.

Abstract: A butt stock that is reversibly attachable to a handgun, the butt stock has a telescopic assembly and a quadrilateral assembly and has at least two states: a compact state and a deployed state. In the deployed state the telescopic assembly is in an extended conformation and the quadrilateral assembly is in an open position while in the compact state the telescopic assembly is in a contracted conformation and the quadrilateral assembly is in a closed position. The butt stock is relatively compact when in the compact state, but when attached to a handgun in a deployed state may provide multiple points of contact that potentially increase the accuracy of the handgun.

Abstract: A stock assembly for use with a firearm includes a stock assembly body having a forward end, an opposing rear end, and a bottom portion defined between the forward end and rear end. A locking mechanism may be disposed on the stock assembly body. A rear butt member may be adjustably positionable on the rear end of the stock assembly body and include a housing defining an end surface forming a base region and a protruding region extending from the base region. The rear butt member may be adjustably positionable relative to the stock assembly body to position the rear butt member base region on a surface extending forward of a user and the protruding region proximate the user for operation of the firearm by the user.

Abstract: Apparatus and associated methods relate to a handgun brace arranged with a rigid structure extending radially away from a handgun trigger guard, and having a forward-facing surface configured to physically engage with at least one finger of a user's non-primary grip hand in a stable position below the handgun's barrel and in front of the handgun's trigger, such that a counter-force applied by the finger(s) at the forward-facing surface tends to prevent the handgun (especially the muzzle), from rising or rotating in response to shooting, such as due to muzzle jump. In an illustrative example, the brace may be releasably fixed to the handgun (e.g., as a modular handgun accessory). A handgun brace that substantially mitigates the unwanted effects of muzzle jump/recoil may advantageously yield higher shooting accuracy and beneficially promote proper handgun grip positioning.

Abstract: A folding stock coupling system for a firearm. An openable/closeable hinge mechanism comprising front and rear hinge elements pivotably mounts the rear stock to the main body of the firearm. The hinge mechanism is selectively movable between a locked condition when the stock is unfolded and inline with the main body for firing, and an unlocked condition when the stock is folded forward and offset from the main body for compact carrying or storage. A manually movable actuating button of the hinge mechanism selectively locks or unlocks the rear to the front hinge members in the locked and unlocked conditions, respectively. Embodiments include a detent mechanism for removably retaining the folded position. An elongated rear mounting extension coupled to the rear hinge member provides a common stock mounting interface compatible for interchanging a plurality of different stocks to the firearm each sharing a common mounting profile.

Abstract: 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.

Abstract: A training pistol and method of providing the same having fixedly and adjustably removable base extensions to emulate the feel of a corresponding live fire pistol, a trigger mechanism configured to be fit in a compact pistol to provide a large number and sophistication of sear surfaces and biasing members such as helical springs and lasers into a compact pistol to provide training for an end user such as concealed carry holder or law enforcement personnel.

Abstract: Systems and methods are provided for firearm usage monitoring, including a battery configured to power components of the firearm, a communication interface and a controller running application software configured to: power, via the battery, the components of the firearm in a first sensing mode; monitor, via the communication interface, density of electromagnetic radiation proximate the firearm; harvest, in response to the electromagnetic radiation density exceeding, power from the electromagnetic radiation via a wireless-energy harvesting mechanism having a receiving antenna configured to receive a local electromagnetic signal, a rectifier configured to convert the received signal to direct current, and a DC-DC converter configured to alter voltage of the direct current to a desired voltage; and operate, via the battery and the harvested power, the components of the firearm in a second sensing mode, the second sensing mode expending more energy than the first sensing mode.

Abstract: In one aspect, a bi-directional foldable stock for a firearm may include a stock-to-firearm adaptor configured to be an interface to connect the firearm and the stock. The adaptor may include a base and a movable top portion that is pivotally and detachably engaged with the base. The top portion is attached to the firearm while the base is connected to the stock. The base with the stock is configured to pivotally rotate either in a clockwise or counter-clockwise manner to fold the stock on either sides of the firearm.

Abstract: Systems and methods are provided for firearm event monitoring, including an inertial measurement unit and a hall-effect sensor mounted on a firearm, a server device running application software that receives signals from the inertial measurement unit and the hall-effect sensor, and a machine learning module configured to create and run identification algorithms, using data derived from the received signals from the inertial measurement unit and the hall-effect sensor indicative of a discharge event type, wherein the discharge event type is one of an ammunition discharge event, a misfire discharge event or a dry-fire discharge event.

Abstract: A firearm accessory includes a firearm foregrip including a grip portion that includes a first mounting rail interface at a first end of the firearm foregrip, and a second mounting rail interface at another portion of the firearm foregrip, the mounting rail interfaces being mountable on an accessory mounting rail of a firearm.

Abstract: Systems and methods are provided for operating a firearm, including communicating with a connected device via a communication interface, detecting a local energy source in a radio frequency, and harvesting power from the local energy source in the radio frequency via a wireless-energy harvesting mechanism having a receiving antenna configured to receive the local energy source in the radio frequency, a rectifier configured to convert the received signal to direct current, and a DC-DC converter configured to alter voltage of the direct current to a desired voltage.

Abstract: Systems and methods are provided for firearm event monitoring, including a motion sensor mounted on a firearm, a server device running application software that receives signals from the motion sensor, a machine learning module configured to create and run an identification algorithm, using data derived from the received signals, to determine a motion of the firearm indicative of an event and a controller coupled to the server device, the controller running application software configured to maintain a round count based at least in part on the indicated event.

Abstract: In one aspect, a bi-directional foldable stock for a firearm may include a stock-to-firearm adaptor configured to be an interface to connect the firearm and the stock. The adaptor may include a base and a movable top portion that is pivotally and detachably engaged with the base. The top portion is attached to the firearm while the base is connected to the stock. The base with the stock is configured to pivotally rotate either in a clockwise or counter-clockwise manner to fold the stock on either sides of the firearm.

Abstract: In one aspect, a bi-directional foldable stock for a firearm may include a stock-to-firearm adaptor configured to be an interface to connect the firearm and the stock. The adaptor may include a base and a movable top portion that is pivotally and detachably engaged with the base. The top portion is attached to the firearm while the base is connected to the stock. The base with the stock is configured to pivotally rotate either in a clockwise or counter-clockwise manner to fold the stock on either sides of the firearm.

Abstract: Systems and methods are provided for firearm monitoring, including a server device running application software that receives signals from firearms regarding usage thereof and a controller running application software configured to communicate with a connected device via a communication interface, detect a jamming signal that inhibits communication with the connected device, stop, in response to detecting the jamming signal, communication with the connected device, and harvest, in response to detecting the jamming signal, power from the jamming signal via a wireless-energy harvesting mechanism having a receiving antenna configured to receive the jamming signal, a rectifier configured to convert the received signal to direct current, and a DC-DC converter configured to alter voltage of the direct current to a desired voltage.

Abstract: A conversion kit for a handgun is particularly suitable for converting a pistol into a pistol carbine. There is described the implementation of such a conversion kit, a conversion method and also a handgun that is converted in this way. The conversion kit for the handgun includes a housing. The housing is configured for establishing a connection to a frame of the handgun and for this purpose it has a linear guide for receiving the handgun frame.

Abstract: An upper receiver assembly of a firearm is disclosed. The upper receiver assembly contains a barrel, an extension block removably coupled with the barrel, an upper receiver removably coupled with the extension block, a handguard mounting block removably coupled with the barrel, and a handguard removably coupled with the handguard mounting block.

Abstract: Handguard anchoring systems suitable for attaching a handguard to a firearm are disclosed, including systems having a fastener that extends into a barrel nut and compresses at least a portion of the handguard between the fastener and the barrel nut. Many embodiments include openings in the handguard and/or a plate that are oversized for the fastener such that the handguard may be rotated relative to the barrel nut when a portion of the fastener is positioned within the opening.

Abstract: A stabilizing device for stabilizing a payload includes a handle assembly, a payload stabilization assembly, and a constant force assembly. The handle assembly includes one or more grips configured to permit a user to support the entirety of the stabilizing device using the one or more grips. The payload stabilization assembly is configured to support the payload and permit the payload to rotate about at least one axis of rotation. The constant force assembly is operably connected to the handle assembly and supports the payload stabilization assembly. The constant force assembly is configured to provide a force that equipoises a gravity force of the payload stabilization assembly with the payload in a vertical direction such that a net force of the payload stabilization assembly with the payload in the vertical direction is substantially zero.

Abstract: In one aspect, a firearm grip may include an elongated grip body that includes a front side, a rear side, and opposing sides. The grip body may further include a front notch, side notches and a rear notch. A flange is formed on each side of the grip body between the rear notch and side notches. The front notch may include a first front securing edge and a second front securing edge. Likewise, the rear notch may include a first rear securing edge and a second rear securing edge. In one embodiment, the first front securing edge of the front notch and the first rear securing edge of the rear notch are configured to lean against the uneven surface, such as the edge of the desk to stabilize the firearm.

Abstract: A double-barreled revolver has a frame, a trigger lever having a first end connected to the frame and movable between a forward rest position and a rearward actuated position, the trigger lever having a free end extending away from the frame and opposite the first end, a guard element forward of the trigger lever and having an upper end connected to the frame and a downwardly depending lower end, and the free end of the trigger lever being separated from the lower end of the guard element by a limited gap, such that the frame, trigger lever and guard element collectively define a protected trigger space. The gap may be less than 0.9 cm such that a user's finger may not enter the trigger space except from a lateral direction. The trigger lever may have an exposed actuation portion configured to be actuated by two fingers.

Abstract: A storage container for a firearm is described. The storage container may contain a female slot for attachment to a rail of the firearm as well as a rail for attachment to a slot of an external device. The storage container may be sealable by a removable cap to protect batteries and other contents from water.

Abstract: Provided is a collapsible stock for mounting to the top surface of a firearm. It includes a sliding beam slidably attachable to the top surface and slidable between collapsed and deployed positions. A butt member is on the sliding beam and a latch is configured to releasably hold the sliding beam in at least the collapsed and deployed positions.

Abstract: The vertical forward grip is a revolutionary new design, which increases shooter(s) accuracy, providing comfort to the shooter and increasing control of the weapon, while reducing fatigue to the shooter(s) overall stamina. The overall design, ergonomic feel, textured finger grip and an ergonomic index finger stabilization cradle of the vertical forward grip allows the shooter(s) to remain comfortable for long extended periods of time, increasing accuracy and control, providing stabilization of the weapon and the design features are different from conventional vertical forward grip(s). Specific design features/improvements are incorporated into the vertical forward grip unlike the design of conventional vertical forward grip(s). Design features and improvements include: a ergonomic index finger stabilization cradle, a textured finger grip, an ergonomic grip control feature (increasing grip comfort, control and accuracy), and a threaded quick turn-and-release base grip cap tube.

Abstract: A backplate for a rifle may include a buffer tube engagement ring and an engagement tab operably coupled to the buffer tube engagement ring. The engagement tab may include a receiver engagement face and an exposed face that is opposite the receiver engagement face. The receiver engagement face may include a backplate protrusion extending away from a surface of the receiver engagement face, and a spring assisted guide spaced apart from the backplate protrusion. The spring assisted guide may include a cylindrically shaped cavity configured to receive and retain a distal end of a detent spring of the rifle.

Abstract: A firearm stabilizing accessory 16 is disclosed which may include a firearm interface 24, a distal joint 26, and a proximal joint 28. The firearm stabilizing accessory 16 may further include an arm 30 disposed between the distal joint 26 and the proximal joint 28. The proximal joint 28 may connect a boom 32 to the arm 30. The boom 32 may further include a brace 34 and a handle 36. The handle 36 may further include a surface 40 which may serve as a cheek weld for an operator of a handgun 12 which may be secured to the firearm interface 24.

Abstract: A brace for stabilizing a handheld device such as a handgun against a user's forearm includes a vertically elongated body adapted to detachably engage a portion of the handheld device, and an arm pivotably connected to a portion of the body. The pivotable arm is selectably moveable between a stowed position wherein the arm is vertically aligned with the body, and a deployed position wherein the arm provides a surface against which a user's forearm is removably receivable to stabilize the handheld device when the body is engaged with the handheld device.

Abstract: A collapsible buttstock with automatic deployment has a housing with an opening providing clearance for a buffer tube. Rods slidably couple through respective openings in the housing; the rods each having a hollow cavity accommodating biasing structure for exerting a biasing force against a respective attachment member. A locking element has locking blocks, each engaging a respective one of plural notches on the rods, for locking the rods to an operator support buttstock element, each of the locking blocks comprising a tapered surface. A release trigger with a contoured step engages the tapered surfaces of the locking blocks. When the release trigger is moved, the contoured step engages the tapered surfaces to push locking blocks away from engagement with the notches on the rods, thus allowing the biasing member in each rod to push the respective rod and the operator support buttstock element away from the housing.

Abstract: A handgun brace for stabilizing a handgun on a user's forearm includes a body adapted to detachably engage a support structure such as a receiver extension extending rearwardly out of the rear end of a handgun, a first arm extending generally downwardly from the body, and a second arm pivotally connected to the first arm. The second arm is selectively moveable between a stowed position wherein and end of the second arm is received against a side of the body, and a deployed position wherein the first arm and the second arm form a downwardly rigid forearm support structure under the body. The forearm support structure includes a continuous support surface upon which a user's forearm is removably receivable to stabilize the handgun when the body is engaged with the support structure of the handgun.

Abstract: A stabilizing device for stabilizing a payload includes a handle assembly, a payload stabilization assembly, and a constant force assembly. The handle assembly includes one or more grips configured to permit a user to support the entirety of the stabilizing device using the one or more grips. The payload stabilization assembly is configured to support the payload and permit the payload to rotate about at least one axis of rotation. The constant force assembly is operably connected to the handle assembly and supports the payload stabilization assembly. The constant force assembly is configured to provide a force that equipoises a gravity force of the payload stabilization assembly with the payload in a vertical direction such that a net force of the payload stabilization assembly with the payload in the vertical direction is substantially zero.

Abstract: A quick detach mount and method are disclosed. The mount includes an accessory receiving portion shaped to receive a quick detach interface, and a first arm extending from the accessory receiving portion. The quick detach mount is shaped to receive a first fastener and a second fastener, whereby the quick detach mount is shaped distribute a force from the accessory receiving portion.

Abstract: A method and apparatus for installing, repositioning, and/or removing a foregrip are disclosed, including providing a foregrip comprising: a rail base mount; a grip assembly comprising: a grip body; one or more guide pins; a plunger; and a locking spring; and a separating spring disposed within the grip body and partially disposed within a portion of the rail base mount; wherein the grip assembly is rotatably coupled to the rail base mount in either an unlocked foregrip state or a locked foregrip state; wherein in the locked foregrip state, a portion of the plunger protrudes into a slot of the rail base mount to secure the foregrip to the sectional rail; and wherein in the unlocked foregrip state; the plunger is retracted from the slot to permit the installation, repositioning, or removal of the foregrip from the sectional rail. Other embodiments are described and claimed.

Abstract: A shoulder support for mounting on an end of a rifle gunstock having a main body that rests against the shoulder in use. The shoulder support has an extension member pivotally connected to the bottom end of the main body that can be selectively pivoted from an extended position to a collapsed position. When in the extended position a surface of the extension member is substantially coplanar with the main body that rests against the shoulder during use to provide enhanced support for the rifle against the shoulder. There is a means for automatically locking the extension member into the extended position, means for rapidly unlocking the extension member to position it in the collapsed position and automatically holding the extension in the collapsed position.

Abstract: A weapon foregrip that attaches to a rail on an underside of a weapon. The foregrip has a receiver on a bottom side that mates with a hitch on the top side of a support stick. The joint formed by the receiver and hitch articulate to allow aiming of the weapon. The receiver and hitch are magnetically connected. The foregrip includes removable thumb guards to protect a users hand is the weapon foregrip is used on a crossbow.

Abstract: A firearm stock system is disclosed that may include a stock having an engaging portion, a distal portion, and a protrusion portion positioned between the engaging portion and the distal portion, the distal portion configured for engaging with a shoulder or an arm of a user. A rail clamp assembly may include a clamping member configured to releasably couple to an accessory rail of a firearm and a rail clamp body having at least one engaging recess or other member configured to couple with at least a portion of the engaging portion of the stock, thereby cantileveredly supporting the distal portion of the stock. A longitudinal axis of the protrusion portion may be approximately parallel to a longitudinal axis of the engaging portion and the longitudinal axis of the protrusion portion may be offset 2-6 cm from the longitudinal axis of the engaging portion.

Abstract: An automatic submachine gun for exploiting recoil, that includes a stock; a fixed barrel; a grip provided with an extractable butt; a bolt sliding in direction parallel to the longitudinal axis of the barrel inside the stock for locking the breech of the barrel; a device for recovering the recoil kinetic energy of the bolt; a hammer swinging in opposition and through the action of a spring actuator element between a cocked position and an uncocked position; a trigger assembly for the hammer; an opposing lever of the hammer for single shot fire; and an opposing lever of the hammer for continuous burst fire; a manual fire mode selector; an extractable magazine for loading cartridge ammunition; and a firing pin.

Abstract: 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.

Abstract: An accessory mounting interface and method are disclosed. The interface has an upper portion having a firearm accessory and at least one through hole extending from a first surface to a second surface of the upper portion, the upper portion having a first post portion with a first side surface and a first flange. A first elongated fastener is arranged through the through hole and has a first end extending below the second surface of the upper portion. The interface also has a second post portion that is movable between a first configuration defining a first transverse distance between the first and second side surfaces and a second configuration defining a second transverse distance between the first and second side surfaces, the first transverse distance greater than the second transverse distance. The first flange substantially opposes the second flange when the second post portion is in the first configuration.

Abstract: A firearm stock with a support such as a bipod, tripod, monopod, or aiming stick is described. The support includes support legs and a mounting structure which mounts the support legs onto the stock. The support legs may be detached from the mounting structure when the support is not in use. After removal from the mounting structure, the support legs may be stored in one or more channels in the stock, by sliding them through one or more apertures in the end of the butt of the stock. The mounting structure may include a swivel mechanism which allows the aiming of the rifle to be adjusted while the support legs remain engaged with the ground.

Abstract: Disclosed is a firearm configuration for a handgun. The firearm configuration is designed to reduce the recoil forces encountered by a user upon firing the weapon. It further includes a recoil plate that absorbs forces generated by the slide during firing. Recoil forces are reduced by lowering the firearm's center of mass and by aligning a recoiling mass with the user's arm and trigger finger. The firearm configuration further includes a locking block which prevents rotational and lateral movement of the barrel upon firing.