Abstract: A fire arm, especially a small caliber pistol, having a grip, a frame connected to the grip, a barrel unit fixed on the frame in the operating state of the fire arm, with a barrel tube and a bolt which can move relative to the frame and barrel unit such that when a shot is fired it can move to the rear against the direction of firing, the barrel unit and/or the frame having fastening means which allow detachable mounting of the barrel unit on the frame.

Abstract: An integrated or built-in key-operated gun lock having a rotatable swivel arm. The lock is preferably positioned at the fore-end of the pump slide handle so that, when deployed in the locked position, the swivel arm interferes with the forward motion of the slide handle thereby preventing the shotgun trigger from being reset for firing the weapon. This also prevents the shotgun from being locked with an ammunition round chambered. The swivel arm is preferably located between the slide arm and the pump magazine. A stationary ring may be installed on the magazine tube or, depending upon the existing configuration of the shotgun, an existing ring such as the ring commonly used to brace the magazine tube to the gun barrel, may be employed to cooperate with the swivel arm.

Abstract: Magazine safety units for use in a self-loading firearm with a removable magazine are disclosed. An example safety unit includes a swiveling lever which is held by a spring in the movement path of a bar which is connected with a trigger. The lever engages the bar in an impeding manner. Engagement of the lever with a part of the magazine swivels the lever out of engagement with the bar.

Abstract: In a weapon, in particular a self-loading pistol, having a barrel (1) and a breech block (4), it being possible for a cartridge (2) to be fired in the barrel (1) by being acted upon by means of a firing pin (7), to identify a fired cartridge (2) and/or to increase the precision during the shot, a contact region (10) of the breech block (4) with the cartridge (2) has at least one prominence (11) and/or recess (12).

Abstract: Safety devices for use with a handheld firearm are disclosed. The safety devices include a lever that can be pivoted into the travel path of the hammer of the firearm to preclude the hammer from striking a firing pin. In an example, the lever is connected to the trigger such that the safety device is released when the trigger is pulled. In another example, the lever protrudes into the magazine shaft of the firearm such that the safety device is only released when a magazine is inserted into the shaft.

Abstract: A fire control system with a decocking lever that operates to decock the hammer and also as a safety. The fire control system also has a magazine safety to complement the decocking lever's dual functions. The magazine safety is in the “safety on” position when a magazine is not fully seated in the magazine well and in the “safety off” position when the magazine is fully seated. In one embodiment, rotating the decocking lever by lifting one of the thumb tabs applies the safety if the hammer is cocked and rotating the decocking lever in the other direction causes the sear to release the hammer but catch it before it reaches the firing pin. In an alternate embodiment, the decocking lever can be used as a safety regardless of whether the hammer is cocked or not. Further rotation lower a cocked hammer.

Abstract: A pistol caliber conversion assembly having a slide assembly housing components of lightweight characteristics so as to accept and permit an interchange of a variety of caliber ammunition. The assembly includes a rail and groove arrangement for slidably mounting a slide housing onto the frame and a recoil mechanism for urging a barrel into a reset position after firing. An open lock mechanism selectively engages the slide housing with the frame and sets to an automatic open position upon ejecting of a last round from the ammunition chamber. The critical selection of high strength-to-weight ratio materials permits machining away of excess materials to reduce weight while maintaining sufficient hardness and mass to handle firing loads.

Abstract: A magazine safety for a semi-automatic firearm having a frame, a magazine well, a magazine, and a firing mechanism is provided. The firing mechanism includes a trigger bar and a sear. The magazine safety includes a rod slidably mounted relative to the frame, and a rod biasing spring that acts on the rod and the frame. When the magazine is removed from the magazine well, the rod is biased into engagement with the trigger bar by the rod biasing spring. The rod holds the trigger bar in a “safety-engaged” position where it is out of alignment with the sear, thereby preventing actuation of the firearm. Inserting the magazine completely into the magazine well causes the rod to move thereby enabling the trigger bar to align with the sear and permit actuation of the firearm.

Abstract: The present invention relates to an automatic bolt hold-open rotating assembly to convert a manual bolt hold-open function to an automatic bolt hold-open function in automatic and semi-automatic pistols and rifles, such as the Ruger 10/22 semi-automatic .22 caliber rifle. The components of the assembly readily replace standard factory components in the trigger assembly and replace the standard magazine. The assembly comprises a magazine with channel cutout, a bolt stop, a bolt stop handle for manual manipulation of the assembly, a bolt stop spring to apply clockwise pressure on assembly, a cartridge detecting lever which also serves as a cartridge ejector pivotably mounted on bolt stop with an extension which interfaces with channel cutout of magazine, a tab protruding from the ejector lever which rides in a slot on the bolt stop to limit pivoting of the cartridge detecting lever, and a lever spring allowing counter-clockwise pivoting of cartridge detecting lever to facilitate insertion of recharged magazine.

Abstract: Safety devices for use with a handheld firearm are disclosed. The safety devices include a lever that can be pivoted into the travel path of the hammer of the firearm to preclude the hammer from striking a firing pin. In an example, the lever is connected to the trigger such that the safety device is released when the trigger is pulled. In another example, the lever protrudes into the magazine shaft of the firearm such that the safety device is only released when a magazine is inserted into the shaft.

Abstract: Magazine safety units for use in a self-loading firearm with a removable magazine are disclosed. An example safety unit includes a swiveling lever which is held by a spring in the movement path of a bar which is connected with a trigger. The lever engages the bar in an impeding manner. Engagement of the lever with a part of the magazine swivels the lever out of engagement with the bar.

Abstract: A magazine safety is provided for a semi-automatic firearm having a frame with a magazine well, a magazine, and a firing mechanism that includes a trigger bar. The magazine safety includes a latch and a latch bias. When the magazine is not received within the magazine well, the latch bias biases the latch into engagement with the trigger bar, thereby preventing the actuation of the firing mechanism via the trigger bar. Inserting the magazine completely into the magazine well causes the magazine to disengage the latch from the trigger bar, thereby preventing the latch from impeding movement of the trigger bar.

Abstract: A semi-automatic handgun is disclosed including a frame having a barrel housing mounted thereon. A barrel is movably mounted on the barrel housing and has a cartridge chamber at its rearward end for receiving a cartridge therein. The barrel is movable between a rearward position and a forward position with respect to the barrel housing and is normally in its rearward position. The barrel moves forwardly in a straight line from its rearward position upon firing of the cartridge in the chamber to counteract the rearward energy of discharge, thereby reducing recoil. The handgun may be fired in either a single action or double action manner. The firing hammer of the handgun is re-cocked, upon firing of the cartridge, by means of a movable piston having a firing pin positioned therein with the firing pin engaging the hammer to move the hammer to its re-cocked position.

Abstract: A locking device for a weapon is provided. The locking device includes a carrier that is receivable in a holder for an ammunition box of a weapon. The locking device also includes a blocking element, the blocking element being supported by the carrier, the blocking element being mountable in a cartridge chamber of the weapon when the locking device is mounted in the weapon, the blocking element being movable between a released position relative to the cartridge chamber and a locked position relative to the cartridge chamber. The locking device also includes an actuator disposed in the carrier, and a power transmission extending between the blocking element and the actuator. A portion of the blocking element is received in the carrier and is at least partly surrounded by protective material.

Abstract: A firearm safety device for a magazine type firearm structured for insertion into the cavity opened in said firearm when the magazine of said firearm is removed has a lock base, a locking bar and a pair of locking rods. The lock base is formed of a first half and a second half fastened together defining therebetween a quadrilateral space and the locking bar is moveably retained in that quadrilateral space with its proximal end extending outside the lock base to enable it to be reciprocated relative to the lock base and the locking rods are moveably retained in the lock base to be moved by the distal end of the locking bar between a latching position to lock the safety device in the firearm cavity and an unlatching position to allow the safety device to be removed from such cavity.

Abstract: The pistol comprises a frame. A trigger is mounted in the frame and is pivotable between a release position and a firing position and spring urged into the release position. The frame comprises a grip portion with a magazine well in which a magazine is removably inserted. A trigger bar is pivotally attached to the trigger and spring urged upwardly. The trigger bar has an abutment member at its rear end which coacts with a sear member that is movably mounted in the frame. A safety member is mounted on the grip portion and is movable between two positions. At its upper end the safety member has a catch for engaging the trigger bar. A second spring urges the safety member into its first position in which the catch pulls the trigger bar down out of engagement with the sear member. The safety member has an abutment face which is engaged by a part of the magazine when the latter is inserted. The part pushes the safety member into its second position in which the catch is out of engagement with the trigger bar.

Abstract: A device for controlling the feeder system of pump-action shotguns having a breech-block which is operatively associated, by virtue of two braces, with a cocking rod (3) moving between two stroke limit positions of the breech-block, a closed position and an open position. The rod motion actuates the feeding of a cartridge from a tubular magazine (5) to a rising block when the breech-block reaches the open position and from the rising block into the firing chamber of the barrel (7) when the breech-block returns to the closed position. The device includes a limiter (9) for limiting the opening stroke of the breech-block and for selectively preventing the breech-block from reaching the open stroke limit position.

Abstract: A magazine safety for a firearm comprises a sleeve that is slidably received within a recessed pocket formed the magazine well and urged downward into the pocket by a spring. The sleeve has an upper blocking projection that engages a notch in the trigger bar of the firearm to prevent lateral movement of the trigger bar and a lower engaging projection that extends into the magazine well and engages the magazine once it is fully inserted, thereby lifting the sleeve and its blocking projection free of the notch of the trigger bar. When not lifted by the magazine against the urging of the spring, the blocking projection prevents movement of the trigger bar. Since the trigger bar is incapable of movement, the firearm cannot be fired until a magazine is inserted.