Abstract: A handgun grip module includes a body portion extending longitudinally with a first body sidewall, a second body sidewall spaced from the first body sidewall, and a bottom body portion extending between and connecting the first body sidewall and the second body sidewall. The body portion has a distal body portion defining a recoil spring channel and a proximal body portion defining a frame box. A recoil block in the body portion is positioned between the recoil spring channel and the frame box and extends laterally between the first body sidewall and the second body sidewall. The recoil block has a distal face and a proximal face. A metallic bracket is disposed against the distal face of the recoil block. A handgrip portion extends transversely down from the body portion and defines a magazine well extending therethrough to the frame box.

Abstract: A replaceable slide notch system for a firearm that includes a replaceable slide notch component dimensioned to fit within a corresponding cavity of a slide. The replaceable slide notch component includes a slide lock notch surface that locks the slide when the firearm's ammunition is exhausted. A second replaceable slide notch component has a second slide lock notch surface that locks the slide at a further rearward position than that of the first slide notch component, thus providing greater chambering/operating force when the slide is released.

Abstract: The ergonomic thermoluminescent dosimeter adapter provides ergonomic design that reduces the risk of repetitive motion injury. The ergonomic thermoluminescent dosimeter adapter includes a form fitting hand trigger and a handle portion mounted on a base. The handle portion has a slot adapted to receive the TLD tool. The TLD tool inserts into the adapter and fastening devices secure the TLD tool to the adapter. In operation, the adapter base is positioned on a flat surface such as a table and adjusted to a comfortable working height until the hand trigger is in a comfortable gripping position. The adapter is held with one hand and the hand trigger is squeezed with the other hand until the targeted TLD holder opens.

Abstract: A firearm for implementing an improved 9 mm cartridge is provided, wherein the improved 9 mm cartridge includes a 9 mm bullet associated with a 45-9 cartridge casing, wherein the 9 mm bullet weights at least 90 grains and wherein the 45-9 cartridge casing is configured to contain a propellant sufficient to propel the 9 mm bullet to a velocity of at least 1600 feet per second. The firearm may include a barrel, wherein the barrel is configured to operably interact with the 9 mm bullet and a chamber, wherein the chamber includes at least one chamber portion sized and shaped to operably associate with the 45-9 cartridge casing and a free-bore, wherein the free-bore includes at least one free-bore portion sized and shaped to operably associate with the 9 mm bullet.

Abstract: A firearm having reduced recoil including a front slide connected to a rear slide by way of a slide link. Firing the firearm causes the rear slide to recoil and transfer energy, by means of the slide link, to the front slide. The front slide moving in the direction opposite the rear slide thereby reducing the recoil of the firearm. After reaching full recoil, the front and rear slides return to their resting positions.

Abstract: A firearm for implementing an improved 9 mm cartridge is provided, wherein the improved 9 mm cartridge includes a 9 mm bullet associated with a 45-9 cartridge casing, wherein the 9 mm bullet weights at least 90 grains and wherein the 45-9 cartridge casing is configured to contain a propellant sufficient to propel the 9 mm bullet to a velocity of at least 1600 feet per second. The firearm may include a barrel, wherein the barrel is configured to operably interact with the 9 mm bullet and a chamber, wherein the chamber includes at least one chamber portion sized and shaped to operably associate with the 45-9 cartridge casing and a free-bore, wherein the free-bore includes at least one free-bore portion sized and shaped to operably associate with the 9 mm bullet.

Abstract: A firearm including a barrel having a chamber and an integrally formed upper receiver having a passageway, an accessory rail extending the complete length of the upper receiver, and a guidance feature extending along the passageway. The firearm also includes an operating rod having an anti-bounce mechanism, a bolt that is rotated counter-clockwise to lock against the chamber, a bolt carrier having a safety extension disposed below the bolt that prevents a hammer from striking a firing pin until the bolt is locked against the chamber, a lower receiver, a recoil spring assembly, and a fire control group. The bolt includes a polymer spring that biases a sliding extractor against the base of a cartridge. The sliding extractor is disposed at an angle ranging from thirty degrees to fifteen degrees on the bolt face to provide a low ejection angle from the firearm.

Abstract: A magazine support reinforcement for a machine gun having a receiver. A magazine support is attached to the underside of the receiver. The magazine support reinforcement is connected to the magazine support. The reinforcement includes a front support, a rear support and a fastener for fastening the front support to the rear support. The front and rear supports include bracing members having a generally concave side and a lug portion.

Abstract: An improved base pad for a firearm magazine that more securely attaches to the bottom of a magazine tube in a manner which is easier and faster to attach or remove therefrom when cleaning the magazine. The improved base pad has a body member with a pair of ends and a pair of sides. The sides each have a groove configured to slidably receive, preferably snugly, the lips at the bottom of a standard magazine tube. One end of the base pad has an outwardly extending section with an upwardly facing, generally planar face. A securing mechanism at the outwardly extending section has an upwardly disposed projection that selectively engages one wall of the magazine tube to secure the base pad thereto when in its engaged position and allows removal of the base pad when in a disengaged position. In a preferred embodiment, the securing mechanism is a detent device.

Abstract: The invention concerns a pistol with a housing (1), breech part (4) movable relative to housing (1), a barrel (5) arranged within breech part (4) and a trigger system (14, 15 16). The housing (1) according to the invention contains a receiver (2) and an upper housing part (3) designed in one part with it, which encloses the breech part (4) with the barrel (5) arranged in it.

Abstract: An improved M1911-style handgun employs redistributed masses for a slide and bull barrel to reduce perceived recoil and muzzle flip when the gun is fired. The gun operates with cartridges having .50 caliber cases, bullets of .50 caliber or less, and 45 ACP-sized base rims, as well as with .45 ACP and smaller caliber cartridges. An improved magazine has crimped feed lips which feed rebated rim cartridges into any handgun or rifle without nose-diving, and a metal-reinforced follower which extends the operational life of the magazine.

Abstract: A pistol comprises a basic housing (1) and a barrel slide (2) which is guided movably on the basic housing (1). An insert piece (8) is mounted in the barrel slide and contains a firing pin (20) and a firing spring (33). In order to improve the reliability while at the same time reducing the production costs, the insert piece (8) forms an open internal cavity (15) in which there are guide surfaces (16, 17, 18) for the firing bolt (20). The firing bolt (20) has mating surfaces (26, 27, 28), which rest on the guide surfaces (16, 17, 18) of the cavity (15) and, on its upper face, defines a free space (24) which runs in a longitudinal direction. The free space (24) contains the firing spring (33), whose front end (34) is supported on the firing pin (20) and whose rear end (35) is supported on an opposing bearing (14).

Abstract: A pistol includes a cross-sectionally U-shaped frame which has first and second opposite side walls, a formed-on grip, a formed-on trigger guard, a first through bore provided in the first side wall and a second through bore provided in the second side wall in alignment with the first through bore. A structural unit is removably accommodated in the frame above the trigger guard and includes bilateral guide rails and a through aperture aligned with the first and second through bores. The structural unit is received in the frame with a form fit for preventing longitudinal displacements of the structural unit relative to the frame. A removable pin passes through the first and second through bores and the through aperture in the structural unit for removably securing the structural unit to the frame. A slide is received in the frame for forward and rearward reciprocating motions relative to the frame. The rails of the structural unit cooperate with the slide for guiding the slide during its reciprocating motions.

Abstract: A pistol grip recoil system for a shotgun or rifle and it has a pistol grip recoil assembly having a recoil base member and a pistol grip. The recoil base member is detachably secured to the rear end of the receiver of the firearm and it has an inverted T-shaped rail formed on its bottom wall. This inverted T-shaped rail is captured within and slides in an inverted T-shaped groove in the top end of the pistol grip. A recess formed in the front wall of the pistol grip adjacent its top end allows the trigger guard of the firearm to travel rearwardly with respect to the pistol grip when the firearm is fired. Various embodiments utilize springs to return the recoil base member forwardly to its static position after dissipating the recoil of the firearm resulting from its being fired.

Abstract: A semi-automatic piston construction of blow-back type configuration to effect directing of projectiles from within includes construction of the pistol to employ application of the breech bolt within the upper receiver, with a return spring arrangement mounted to the breech bolt in an axially spaced and parallel relationship relative to the firing pin. The upper receiver includes a generally U-shaped trough projecting from the receiver into the handle portion of the lower receiver to accommodate the main spring and magazine holder structure.

Abstract: A firearm (10) is provided which is light weight, safe and simple to operate. The firearm (10) comprises a bolt-barrel-receiver assembly (12), a grip assembly (14) and a magazine assembly (16). the bolt-barrel-receiver assembly (12) comprises a barrel assembly 41, a receiver assembly, (42) and a bolt assembly (44). The grip assembly (14) comprises a grip body (110) and a fire control assembly (112). Plastic is incorporated into the barrel assembly (41), the fire control assembly (112) and the grip body (110). The firearm (10) incorporates several safety features through a safety actuator (222) and a disconnect (148). These safety features include a surface (243) for blocking movement of a sear (120), a blocking surface (248) for blocking movement of the disconnect (148) and a hammer passage (246) allowing blocking of the hammer (118). Due to the design of the various assemblies, the firearm (10) is comparatively simple to disassemble for cleaning or repair.

Abstract: A semiautomatic firing mechanism for an autoloading firearm. A generally C-shaped hammer is pivotably mounted behind a bolt, with a transversely-extending sear piece located below the rearwardly-facing open side of the hammer. The open ends of the hammer provide ledges selectively engageable with primary and secondary sear surfaces on the sear piece.

Abstract: The invention comprises a recoil operated pistol in which the barrel is positioned below the index finger of the hand. Therefore, when the handle of the pistol is gripped by the hand, the axis of the barrel, and, therefore the axis of recoil, is nearly aligned with the center of mass of the hand, and with the axis of the forearm of the user. In this manner, muzzle rise is eliminated and the velocity of recoil is considerably reduced by the combined inertia of the gun-hand-forearm weapon system. These geometrical and mechanical considerations make it possible for the pistol to be effectively fired as a machine gun, and for its structure to have the lightweight and compact dimensions of a pocket pistol.