Abstract: A quick-attach/quick-detach coupler assembly used for mounting a hand guard around a rifle barrel, allowing prompt barrel change. The coupler assembly has a generally cylindrical barrel nut with a plurality of external rail-mounting teeth centrally around its exterior circumference, interior threads for connection to the upper receiver of a rifle, and multiple fastener holes allowing set screws to contact a two-piece separable extension and provide anti-rotational engagement between it and the barrel nut. The barrel nut's interior threads also connect it to the extension. A tool configured as a hand guard fastener and stored/carried on the hand guard is easily accessed to tighten/release the set screws. The tool's handle may also be configured to engage notches on the extension's barrel end and facilitate its release from the barrel nut. The coupler assembly will mount almost every hand guard currently marketed to the upper receiver of the AR family of rifles.

Abstract: A method of autonomously tailoring a detonation delay time of a gun launched munition by utilizing target impact signatures including but not limited to a MOUT target set; earth and timber bunker, triple brick wall, double reinforced concrete, and light armor. While the present method is applicable to countless munition configurations, the projectile architecture used to develop the discrimination algorithm includes a tandem warhead configuration. Upon target impact the forward warhead detonates and pre-damages the target to allow the rear warhead to break through. Target impact data is used to set a detonation delay in the rear warhead providing increased performance behind the target.

Abstract: A bipod kit for a firearm has a bipod leg mounting body and a firearm structural component. The bipod leg mounting body has a substantially round central passage defining an interior side surface thereof and has two leg mounting structures on an exterior side surface thereof generally opposite the interior side surface. The firearm structural component can be mounted on the firearm at an OEM (original equipment manufacturer) mounting structure thereof. The firearm structural component includes a bipod mounting portion integral therewith. The bipod mounting portion is cylindrical and is rotatably mounted within the central passage of the bipod leg mounting body. The bipod mounting portion is configured such that a barrel of the firearm extends through a central passage thereof when the firearm structural component is mounted on the firearm at the OEM mounting structure thereof.

Abstract: This invention describes an ergonomic combination sight for small arms. According to one embodiment, the combination sight comprises a reflector sight mounted on top of a telescopic sight. A refracting wedge prism is included in the optical layout of the telescopic sight to tilt the viewing axis of the telescopic sight towards the viewing axis of the reflector sight. This feature provides better ergonomics since a shooter can aim through the reflector sight or the telescopic sight using the same head position.

Abstract: An ambidextrous rifle system, method and apparatus are provided. The rifle system may comprise a receiver configured to receive and carry a switch bolt system. The switch bolt system may comprise a first bolt and a second bolt. The first bolt may be configured for a right handed shooter. The second bolt may be configured for a left handed shooter. The first bolt and the second bolt may be moveable within the receiver between the battery and out of battery positions.

Abstract: A firearm flash hider can include a base module and at least one vented flash control module. The base module can have a longitudinal boreline which is fluidly coupleable to a muzzle end of a firearm to allow a projectile to pass therethrough. The base module can also have an inlet port which is operable to receive at least a portion of a flash generated by firing the projectile. The vented flash control module can be arranged along the longitudinal boreline distal to the muzzle end. The vented flash control module can also have a flash chamber bounded by at least one wall that at least partially defines a geometry of the flash chamber and extends both radially and longitudinally from the boreline and translates circumferentially as it extends longitudinally. The flash chamber terminates at a circumferential angle of rotation from the inlet port where the circumferential angle of rotation being less than 180 degrees.

Abstract: This invention teaches a weapon sight whose eyepoint is offset with respect to the sight's main optical axis. A refracting wedge prism is added to the optical layout of a telescopic sight to tilt the viewing axis and provide an offset eyepoint. The invention has several advantages including better ergonomics when used in combination with other type of sights such as open sights or reflex sights.

Abstract: A device for controlling fluid delivery includes a hollow body closed by opposed end walls having an inlet and an outlet for a pressurized fluid and defining a first variable-volume chamber, between the inlet and the outlet for containing a first volume of pressurized fluid, an obturating member interacting with the downstream end wall of the hollow body for selectively closing the outlet, a guide member associated with the obturating member guiding it between a first end closing position and a second end opening position of the outlet; and an operating system acting upon the closure member to promote sliding thereof in the hollow body. The obturating member is movable relative to the guide member and is internally hollow to enclose the first chamber, and the guide member has a passage allowing fluid communication between the inlet and the first chamber. An air weapon incorporating the device.

Abstract: A rifle configured for firing a 7.62×39 mm round is provided. The rifle having: an upper receiver; a lower receiver, the upper receiver being removably secured to the lower receiver, wherein the lower receiver is configured to removably receive and secure a magazine therein, the magazine being configured to hold at least 30 rounds of a 7.62×39 mm ammunition; and wherein a magazine well of the lower receiver is configured to receive an adapter at a front of the lower receiver.

Abstract: The present invention relates to systems and methods for aiding the insertion of detachable magazines in AK rifle variants. The magazine well attachment includes a well attachment body having a slit configured to slide over a trigger guard of a firearm during the assembly process. The attachment body includes a beveled well opening for guiding a tilt-lock magazine into the firearm. The beveled well opening includes beveled steps for funneling and centering the magazine during insertion and also includes an angled front well ramp for guiding the magazine into the rifle at an appropriate angle. In order to accommodate the dimensional variances between receivers made by different manufacturers, a front retainer secures the attachment to the magazine opening. The magazine well attachment also includes a rear overhang secured to a ledge of the firearm's trigger guard.

Abstract: A tactics support apparatus includes an operation unit configured to calculate a friendly military power necessary for each of defense areas which are set between an enemy and a target of the enemy based on a total quantified military power of deployed movable weapons of the enemy and a friend, and determine friendly movable weapons to be deployed in each of the defense areas. An output unit is configured to visibly output deployment positions of the friendly movable weapons.

Abstract: Embodiments of the invention relate to a dynamic suppression mechanism for a semi-automatic firearm. An axial mass is positioned adjacent to multiple dynamic volume chambers, which are aligned within a housing. An aperture is provided within the mass and aligned chambers to accommodate the projectile. As the projectile travels through the aperture across the length of the housing, each of the chambers is subject to a dynamic expansion and contraction, with the dynamic volume change absorbing byproduct of the traveling projectile.

Abstract: A magazine assembly for a firearm in one embodiment includes an outer magazine housing configured for attachment to a firearm and a magazine removably insertable into the housing. The magazine includes an axially extending internal cavity configured to hold a plurality of ammunition shells in stacked end-to-end relationship. In one embodiment, the magazine has an elongated tubular body. A shell catch lever is slideably mounted on the magazine for linear and pivoting movement in one arrangement. The shell catch lever retains a shell in the magazine in a first lateral position and releases the shell from the magazine in a second lateral position. The shell catch lever operates to retain and release shells from the magazine when either removed from or positioned in the magazine housing for loading the firearm.

Abstract: A shell feeding system for a top loading shotgun in one embodiment includes a barrel, receiver, and a magazine. The magazine includes a cavity configured to receive a plurality of ammunition shells in stacked end-to-end relationship. The magazine is positioned above the barrel and extends forward from the receiver. Shell guide grooves are formed by internal surfaces in the receiver which engage and guide each shell in a feed pathway towards the lower part of the receiver for chambering. A portion of the guide grooves may be arcuately shaped to rotate and reposition the shell for loading by the bolt into the chamber. In one embodiment, the receiver and magazine may be formed as a unitary integral structure formed as either a single piece or in half sections coupled together.

Abstract: A magnetically actuated sear for simulated firearm training is disclosed. The magnetically actuated sear includes a magnet and a magnet catch. The magnetically actuated sear facilitates a crisp trigger break thereby replicating the actual sear release of a firearm. The application of a suitable external trigger force causes the magnet catch to travel along the fulcrum away from the magnet. The greater the difference between the holding force when the magnet is in direct contact with the magnet catch and the attraction force between the magnet and the magnet catch, the crisper the magnetically actuated sear will feel. The magnetically actuated sear can be designed so that slack or trigger creep of the magnetically actuated sear can be matched to the actual firearm's slack or trigger creep.

Abstract: A retrofit apparatus is disclosed for a gas-operated reloading firearm having a pressure control unit to operate the firearm in either manual or semi-automatic operation. The pressure control unit is coupled to the reloading unit to reduce a gas flow to the reloading unit in a first configuration and allow the gas flow to the reloading unit in a second configuration. A controller is coupled to the pressure control unit to operate the firearm in the first or second configuration. The firearm operates in a first configuration requiring manual operation until it receives continuous manual actuation to enable the reloading unit in a second configuration.

Abstract: A keyhole mounted accessory system, the system comprising a main body coupled to an intermediate body, the intermediate body having a base that contains a large hollow cylinder. The large hollow cylinder contains a small hollow cylinder. A bolt protrudes from a first end of the main body through the small hollow cylinder and the large hollow cylinder. A cylindrical rotor having a round aperture in the center contains one or more helical pads is coupled to a top plate by one or more anchors. The top plate includes one or more helical recesses that interface with the one or more helical pads. The one or more anchors secure the top plate to the intermediate body.

Abstract: Provided is a charge feeding apparatus including: a plurality of containers storing a plurality of charges; a chain link configured to connect the containers extending in a first direction and arranged in parallel to one another and configured to rotatably change positions of the containers; a chain driver configured to transmit a rotational force to the chain link to transfer a container of the containers to a discharge position; a rod configured to transfer at least one charge of the charges in the first direction of the container to discharge the at least one charge from the container located at the discharge position; a loading container configured to store the at least one charge discharged from the container located at the discharge position and comprising an opening which exposes the charge; and an extractor configured to extract the charge from the loading container via the opening.

Abstract: A striker-fired firearm in one embodiment includes a trigger assembly including a trigger and trigger bar supported by a frame, a rotatable sear operable to hold a spring-biased striker in a cocked ready-to-fire position, and a rotatable sear blocker operable to prevent rotation of the sear. The trigger bar is operably linked to the sear and blocker such that pulling the trigger rotates the sear and blocker. When the blocker is in a blocking position, the blocker engages and prevents movement of the sear and release of the striker in the absence of a trigger pull. When the blocker is in a non-blocking position effectuated by pulling the trigger, the blocker disengages the sear which rotates and releases the striker to fire the firearm.

Abstract: This invention is directed to muzzle devices for firearms and, in particular, to muzzle brakes and compensators (“Muzzle Devices”). More specifically, but without restriction to the particular embodiments hereinafter described in accordance with the best mode of practice, this invention relates to a concussion reducing device (“CRD”) associated with said Muzzle Devices.