Abstract: The present disclosure provides a cartridge that modifies the .223 cases to achieve a cartridge length of 38.3 mm for use with a bullet (e.g., 110 g). The present cartridge system allows the use of a 30-caliber bullet to be used in an AR15 rifle/pistol platform. The decreased cartridge length optimizes the powder burn rate and pressure, which in turn has a greater effect on the ballistics of the round. The present system yields 300-400 ft/s higher velocity over the .300 Blackout in rifle length barrels and greater than 500 ft/s in shorter pistol barrels.

Abstract: The present invention provides a projectile device and a method of manufacture of a projectile device and in particular, to a pistol bullet and a rifle bullet and method of manufacture of same. In one embodiment, the projectile apparatus has a cylindrical body portion having a diameter, a front nose section tapering from a most proximal point of the projectile to the cylindrical body portion, and a rear tail section connected to the body portion and extending to the most distal point of the projectile, in which the front nose portion comprises a plurality of twisting depressions forming troughs.

Abstract: A rail clamp assembly that improves the mechanisms whereby a rail is secured to the rail clamp assembly comprising a mounting base having a diagonally and generally elliptical-shaped channel formed therethrough and further comprising a clamp member. The clamp member has a diagonally formed throughway formed therethrough. The clamp member is received by the mounting base such that the throughway of the clamp member is aligned with the channel. The clamp member further comprises a protrusion which is received within a slot of the rail and the mounting base comprises a protrusion which is received within an adjacently situated slot of the rail. A side wall of the mounting base and an inclined surface of a flange of the clamp member are configured to engage with an inclined surface of the rail to further secure the rail to the assembly.

Abstract: A suppressor heat shielding system, including at least some of a suppressor heat shield having an internal cavity sized to allow at least a portion of a suppressor to be at least partially contained therein, wherein a sealed heat shield cavity is formed between at least a portion of an interior surface and at least a portion of an exterior surface of the suppressor heat shield, and wherein a vacuum is created within the heat shield cavity; an externally threaded support ring attached or coupled to a first end of the suppressor heat shield, wherein one or more support ring air gaps are formed through the support ring element; a heat shield cap having one or more gas apertures formed therethrough abutted against a second end of the suppressor heat shield; and a heat shield nut abutted against at least a portion of the heat shield cap.

Abstract: An enhanced breaching round and techniques for manufacturing such are provided. A breaching round includes a case defining a volume, a propellant disposed in the volume of the case, and a projectile coupled to the case. The projectile may include a body disposed at least partially within the case and configured to enclose the propellant within the volume of the case. The body may be formed of a castable eutectic mixture configured to be melted and cast, wherein the body is configured to break into a plurality of fragments upon impact with a target. A cavity may be disposed between the proximal end and the distal end of the body, and a reactive material disposed in the cavity, the reactive material comprising at least one oxidizer and at least one fuel.

Abstract: A muzzle device mounting system having a muzzle device having muzzle device locking lug recesses; a locking collar having locking collar locking lug recesses and being rotatable relative to the muzzle device between a locked position and an unlocked position; and a pin extending from the locking collar and into at least a portion of the pin channel to limit rotational movement of the locking collar relative to the muzzle device, wherein if the locking collar is in the unlocked position, the muzzle device locking lug recesses are aligned with the locking collar locking lug recesses and if the locking collar is in the locked position, the muzzle device locking lug recesses are not aligned with the locking collar locking lug recesses.

Abstract: The present disclosure is directed to an apparatus and method of directing a portion of a pressurize gas flow through a port in the breech after is leaves a bolt in a projectile launching device, such as a paintball marker, to perform additional functions in parallel with launching the projectile from the launching device. For example, the additional function can be a mechanism to prevent, or free, any potential bottlenecks of projectiles at that location when using a gravity fed hopper, for example. An agitating device is at least partially disposed in the outlet of a hopper. A bolt, having key groove or gas port, is configured to bleed air to a port in the breech that is used to fire a loaded projectile, the air is provided from a pressurized air source. An actuator moves the agitating device when air is bled through the key groove and the port.

Abstract: Embodiments employ venting features and damping components both inside and concentric to a fuzewell to improve munition fuze survivability. Damping components are selected based on their densities, stiffness properties, and material strengths. A shock damping liner with longitudinal grooves is affixed to an inner surface of the fuzewell and envelops the fuze. A biased equivalent strength threaded shock damping ring is concentric about the outer surface of the fuzewell and attenuates shock between the outermost munition system layer (a munition case) and the fuzewell. The damping components' materials, orientations, and structural geometries provide increased damping, resulting in impedance mismatches across multiple interface surfaces in the munition, which reduces shock vibrational pressures and stresses transferred to the fuze.

Abstract: A portable item carrier and belt feed system is provided along with related methods. One illustrative embodiment includes a carrier and feed structure comprising a semi-rigid material with a divider support extending perpendicularly from a center floor section of the carrier. A belt of items is folded over the divider to reduce jams or misfeeds as the belt of items is pulled through a feed chute near an upper side section of the carrier and feed structure at a predetermined range of feed angles to the divider support. A latch disposed on a lid of the feed structure is configured for quick and easy access to the belt of items. A flexible outer container encloses the carrier and feed structure and can be coupled to a harness section configured to couple with a mobile structure. Additional embodiments include variants suitable for field manufacturing as well as portable manufacturing systems and methods.

Abstract: An axially offset foregrip assembly for a long gun has a grip portion having a first grip axis, with a middle portion of the grip portion configured to be grasped by a hand of a user about the first grip axis. The foregrip assembly also has a coupling portion for coupling between the middle portion of the grip portion and a fore-end of a long gun. The long gun has a barrel having a longitudinal axis and a rear grip having a second grip axis, which together define a vertical barrel plane. The coupling portion is configured to couple the grip portion to the fore-end of the long gun such that the first grip axis is in a vertical grip plane horizontally offset from the vertical barrel plane, with the vertical grip plane and the first grip axis substantially parallel to the vertical barrel plane.

Abstract: An assembly comprising a firearm slide and an adaptor plate configured to mate with the firearm slide. The adapter plate includes a first seat in a top surface of the adaptor plate and a second seat in the top surface of the adaptor plate. The assembly also includes a first iron sight configured to mate with the first seat and a second iron sight configured to mate with the second seat.

Abstract: A firearm loader may be used to transfer at least one cartridge to a firearm. The loader includes a main body comprising a proximal end and a distal end and a follower disposed inside the main body. The loader may include an engaged configuration wherein the loader is at least partially inserted into a firearm. The proximal end may include an opening. In the engaged configuration, the opening approximately faces a magazine of the firearm.

Abstract: This disclosure describes a configuration of a multirotor aircraft that will facilitate enhanced yaw control. The multirotor aircraft includes one or more adjustable members that will twist the frame of the multirotor aircraft, thereby adjusting the orientation of the motors and propellers and enhance the yaw control of the multirotor aircraft. In some implementations, the adjustable member(s) are passive and twist in response to differential thrusts generated by the propellers. In other implementations, the adjustable members are active and twist in response to a yaw command from the multirotor aircraft control system.

Abstract: A novel castable frangible projectile and techniques for manufacturing such are provided. A cartridge system includes a case defining a volume, a propellant disposed in the volume of the case, and a projectile coupled to the case. The projectile includes a body disposed at least partially within the case and configured to enclose the propellant within the volume of the case. The body is formed of a castable eutectic mixture, the castable eutectic mixture configured to be melted and cast, wherein the body is configured to break into a plurality of fragments upon impact with a target.

Abstract: A device for releasably mounting an autopilot control circuit to a flight control component of an aircraft, includes a frame that holds a component of an autopilot control circuit; a first coupler releasably fastened to the frame and operable to releasably mount the frame to the airframe of an aircraft; and a second coupler releasably fastened to the frame and operable to releasably mount the frame to a flight control component of the aircraft. When the device is releasably mounted in an aircraft's cabin and the autopilot control circuit is engaged, the autopilot control circuit controls an aspect of the aircraft's flight by moving the second coupler relative to the first coupler. With the device one can releasably mount an autopilot control circuit to an aircraft that does not have one and use the autopilot control circuit and device to control one or more aspects of the aircraft's flight. Then, after the flight is finished, one can remove the device and autopilot control circuit for use in another aircraft.

Abstract: The present invention provides an injection molded primer insert for polymer ammunition comprising: a top surface opposite a bottom surface; a primer flash hole aperture positioned in the top surface extending through to the bottom surface; a substantially cylindrical coupling element extending away from the bottom surface forming an interior surface inside the substantially cylindrical coupling element and an exterior surface; a primer recess in the top surface that extends toward the bottom surface, a primer flash aperture positioned in the primer recess to extend through the bottom surface, and a flange that extends circumferentially about an outer edge of the top surface, wherein the flange is adapted to receive a polymer overmolding.

Abstract: One embodiment of the present invention provides a making a polymeric ammunition having wicking texturing about the projectile end.

Abstract: Disclosed is a masking material intended to be disseminated by an ammunition or a launcher to create a cloud that masks a target with respect to electromagnetic radiation in a given wavelengths range. This material contains at least one aluminium oxyhydroxide, such as boehmite or pseudoboehmite. Also disclosed is an ammunition enabling the dissemination of such masking material and the use of aluminium oxyhydroxide, such as boehmite or pseudoboehmite as a masking material that can be disseminated by an ammunition.

Abstract: An article comprising an electronic safe-arm and fire (ESAF) device for a supercavitating cargo round (SCR) includes discrete electronics, a high-voltage capacitor, a high-voltage switch, and an exploding foil initiator. The discrete electronics includes digital-delay timer circuits, discrete logic circuits, accelerometers, and circuitry for enabling the high-voltage switch. In a method for implementing the safe and arm protocols, sensor readings from sensors on a weaponized UUV are obtained and, when certain conditions are achieved, remove inhibit signals are forwarded to a controller onboard the UUV. When such signals are received in a specified order, and within certain optional specified time delays, the controller arms the ESAF within the SCR. After the SCR fire and leaves the barrel on the UUV, the ESAF monitors certain acceleration/deceleration conditions unique to supercavitation, and applies same to determine whether to detonate the SCR's energetic payload.

Abstract: A semiautomatic shotgun comprising a receiver, a barrel, a forward gas block assembly attached to the barrel, a slider assembly rearward of the gas block assembly extending into the receiver. Upon firing a shotshell the explosive gases in the barrel are diverted through two ports into the gas block assembly, specifically into a pair of lateral pressure relief valves positioned on both sides of the barrel. The pressure relief valves further having a gas pathway to a piston chamber. A piston is forced rearwardly and engages a slider of the slider assembly that is linked to a breech block in the receiver. The breech block loads unfired shells and ejects the fired shells accomplishing the semiautomatic recycling. The dual pressure relief valves actuate to moderate and limit the gas pressure that enters the piston chamber when using shotshells of different power levels thereby providing consistency in the recycling operation.