Abstract: Trigger module securing apparatus using internally threaded pins and threaded fasteners to secure a trigger module into the lower receiver of a rifle.

Abstract: An explosive device, such as a missile, artillery round, aerial bomb, mortar round, or mine, that utilizes a wall structure that upon detonation provides displacement of smaller fragments interstitially between larger fragments. The displacement of the smaller fragments into the interstitial spaces at detonation creates an expanding fragmentation curtain that momentarily contains expanding gases to increase the impulse pressure of the explosion, thereby increasing the kinetic energy imparted to the fragments. In some embodiments, the wall structure includes ordered layers of preformed metal fragments encased in binder material that suspends the fragments in a desired arrangement prior to detonation.

Abstract: An offset magazine release button includes a body portion and a generally stairstep-shaped end portion. The body portion may be inserted into a magazine release opening of a firearm. The stairstep-shaped end portion may include an indention portion providing or creating a floor or floor portion and a narrow stairstep riser. The floor, when part of the assembled firearm, is generally flush with the firearm's gripping surface to create an augmented gripping surface that may allow the operator to have a higher grip to help control recoil. The end portion also includes an offset contacting pad. The floor transitions to the riser, which then transitions to the pad. The pad has a generally perpendicular ledge or surface extending toward an actuating thumb position of the operator's grip. The pad surface may be textured to provide for better contact with the operator's thumb when depressing the button to release a magazine.

Abstract: A detonator which is initiated by a shock tube event which is validated if a processor determines that a fusible link was not fused by a shock tube event at a predetermined time interval before light generated by the shock tube event is detected.

Abstract: A method for determining airspeed of an aircraft that includes determining a rotor model relating a power coefficient of a propeller of the aircraft to an axial inflow velocity through the propeller as a function of a set of rotor operating parameters; determining the set of rotor operating parameters by sampling an electronic control signal associated with an electric motor actuating the propeller; computing the axial inflow velocity through the propeller based on the set of rotor operating parameters using the rotor model; and determining the airspeed based on the axial inflow velocity.

Abstract: 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.

Abstract: An armor component that includes a ballistic tile made of, for example, boron carbide or silicon carbide, a plurality of wraps made of ballistic fibers such as carbon fiber, and a metal plate, for example, a steel plate, the metal plate being positioned behind the reverse side of the tile and the wraps being wrapped around the tile and the metal plate.

Abstract: The present invention relates to a pistol comprising a firing pin safety device integrated into a slide (5) of the pistol comprising a firing pin (1) comprising a lateral extension (25) comprising at least one safety lug (10,11) and a firing pin butterfly safety (2) positioned on an axis of rotation (27) fastened to the slide and parallel to the axis of translation of the firing pin (20), said butterfly safety (2) being able to rotate in a vertical plane between a firing position and a blocking position, said butterfly (2) comprising at least one bearing surface (17,18) on which the at least one lug (10,11) rests when said butterfly is in the blocking position and at least one recess (14) able to allow the at least one lug (10,11) to pass when said butterfly is in the shooting position, the center of mass of said butterfly (2) being on its axis of rotation (27) and the axis of rotation (27) being a main axis of inertia of said butterfly (2).

Abstract: A grappling assembly for use with an entangling projectile includes at least one hook including an apex portion and a sharpened prong extending distally from the apex portion. A protective cover is positioned adjacent the apex portion of the at least one hook, the protective cover including at least one substantially planar surface. The sharpened prong of the at least one hook extends distally from the protective cover and thereby remaining exposed while the protective cover is positioned adjacent the apex portion of the at least one hook. The at least one hook and the protective cover are formed as an integral unit, or as a continuous, solid piece.

Abstract: A sight magnifier assembly is configured to be releasably secured to a rail feature of a firearm to be used with a sight assembly to enhance a downrange image. The sight magnifier assembly includes a base configured to be releasably secured to the rail feature of the firearm and a housing rotatably coupled to the base. The housing is configured to support sight optics used to enhance or improve the downrange image. The assembly further includes a mechanism configured to enable the rotation the housing with respect to the base between a use position in which the sight optics is configured to be used with the sight assembly and a stored position in which the sight optics is moved so that the housing and the sight magnifier assembly is nearly completely obscured from the operator by the sight assembly as viewed along a longitudinal axis.

Abstract: The present invention includes a shield having a shield portion and a handle, the handle comprising a wall mount that allows the shield to be hung on a wall. The handle is coupled to the shield portion at a first end portion and a second end portion. An outward bending portion is disposed between the first end portion and the second end portion that allows a user to hold the shield. The wall mount includes a slit configured to house the head of a nail or other hanging fixtures and enables the shield to be mounted on a wall.

Abstract: The inventive subject matter is directed to systems and apparatuses that are designed to work in cooperation with a firearm such that the firearm can fire a less lethal projectile. Systems can include a mounting device that clips onto a firearm, where that mounting device also include mounting posts. The mounting posts protrude from an end of the mounting device, and the mounting posts are designed to couple with mounting holes on an associated slug. Slugs of the inventive subject matter thus feature mounting holes and a center-bored hole that is designed to capture a bullet that is fired from a firearm that the system is coupled to. When a bullet is captured by a slug, an inelastic collision takes place that causes the slug to leave the firearm at around 20% of the bullet's original speed.

Abstract: Workpieces for producing a firearm have an elongated body defined within a cross-sectional profile with a first elongated passage configured to receive the upper portion of the bolt, and with a second elongated passage configured to receive the lower portion of the bolt, and the elongated body having a separator between the first elongated passage and the second elongated passage and configured to prevent installation of the bolt assembly when the separator is present, and to enable installation of the bolt assembly when the separator is absent. The cross-sectional profile may be along the entire length of the elongated body. The cross-sectional profile may fully encompass the first elongated passage. The first elongated passage may be open only at the ends of the elongated body. The cross-sectional profile may have a U-shaped cross-section.

Abstract: A semiautomatic or fully automatic firearm that includes a barrel, the rear barrel end whereof is in the form of a cartridge chamber into which a cartridge can be inserted, a breech body which is arranged such that it can move in the longitudinal direction between an open position, which releases the cartridge chamber for the reloading of a cartridge, and a closed position which closes the cartridge chamber, wherein the breech body closes the cartridge chamber at the rear in the closed position and is used as a support for the cartridge case of the cartridge, wherein the firearm has a mass simulation body which is in force-fitting engagement with the breech body, in particular a mass simulation body which is rigidly connected to the breech body, the mass simulation body being formed at least in part from a magnetizable or a magnetic material.

Abstract: A firearm includes a barrel portion, a slide, and a frame. The frame includes a grip, and the grip includes a magazine chamber and a rear surface adjacent the slide. At least one sensor is carried by the grip, and the at least one sensor adapted to sense a state of the magazine detachably received in the magazine chamber corresponding to a number of cartridges of ammunition remaining in the magazine. A display is carried on the rear surface of the grip, and the display includes a plurality of illuminating devices. The display is operatively coupled to the at least one sensor and is operable to visually present the number of cartridges of ammunition remaining in the magazine by illuminating at least one of the plurality of illuminating devices.

Abstract: A projectile deployment system includes an entangling projectile having a pair of anchors and a tether connecting the pellets. A projectile casing includes a pair of sockets, each socket sized to carry one of the pair of anchors. At least one pressure source is capable of expelling one or both of the anchors from the projectile casing toward a subject. At least one of the entangling projectile or the projectile casing can be configured such that the pair of anchors travel toward the subject with differing flight characteristics after being expelled from the projectile casing.

Abstract: A foldable support for aiming an aimable device, including: (a) a coupling arrangement adapted to releasably couple the aimable device thereto; (b) a foldable leg mechanically coupled to the coupling arrangement; (c) two linear actuators adapted to be angularly spaced apart, the two linear actuators adjustably coupled to the coupling arrangement; and (d) a collapsible reinforcement frame selectively providing rigid interconnection between bases of each of the two linear actuators and the foldable leg, and collapsible to provide a compact portable form of the support.

Abstract: A modular bolt action rifle is provided, having an upper receiver configured to receive a bolt action bolt housing and bolt and a first universal fitting at a front of the upper receiver configured to receive one of a plurality of commonly sourced rifle barrels, and a lower receiver integral to or coupled to the upper receiver. The lower receiver is configured to receive commonly sourced fire control group components and a commonly sourced bolt action trigger mechanism. The lower receiver includes a second universal fitting at a rear of the lower receiver configured to receive one of a plurality of commonly sourced butt stocks.

Abstract: An automated magazine loading device having an ammunition hopper adapted to receive a firearm cartridge and a conveyor coupled to the ammunition hopper. The conveyor is configured to transport the firearm cartridge to a projectile indexer located in proximity to the conveyor and the conveyor is configured to deposit the firearm cartridge into the projectile indexer in a first orientation. The projectile indexer is configured to reorient the firearm cartridge into a second orientation. The projectile indexer also includes a port for receiving a magazine therein. Finally, the automated magazine loading device includes an actuator for engaging the firearm cartridge and inserting the firearm cartridge into the magazine.

Abstract: A metallic component of a lower receiver for a firearm is disclosed herein. The metallic component includes a body with apertures between a first side of the body and a second side of the body. The body can be configured to mate with another component of the lower receiver along the second side. The two lower receiver components can be detachably affixed together via the apertures. The body can have a ring-shaped protrusion at a first end. The ring-shaped protrusion can extend outward perpendicular to the first side and the second side.