A base plate for a pistol with a recessed handle for a magazine comprising, a base plate having a generally rectangular central extent with parallel sides and an arcuate front slidably coupleable to the lower extent of a magazine positionable within a handle recess. The base plate has folded-over side regions located above the central extent and spaced therefrom and a folded-over arcuate front region located adjacent to the central extent at the front of the base plate and between the side regio...

According to the present invention a firearm device comprises a firearm; safety means for impeding an unauthorized person to fire the firearm; and information storage means for recording and storing at least one aspect of the group consisting of an image in the direction in which a shot is in use fired, sound at about the time when a shot is in use fired, time when a shot is in use fired, and location of the firearm.

The sear is rotatably supported in the frame of the firearm to rotate around an axis of rotation. The hammer is pivotally mounted in the frame to pivot around a pivot axis. The hammer includes a striking surface. The sear includes a blocking surface which cooperates with a resting surface of the hammer. The position of the blocking surface of the sear which is determined by its axis of rotation, the position of the striking surface of the hammer, which is determined by the location of the pivot ...

A firearm comprises a housing, a barrel extending in a first direction, a chamber structure, a trigger and firing means, wherein the chamber structure is constituted by a chamber member, which is separated from the barrel and is movable in the housing in a second direction, which is transverse to the barrel axis, and an actuating mechanism is provided for reciprocating said chamber member in said second direction between a firing position and a loading position. The actuating mechanism comprises...

A firearm comprises a gas drive for actuating loading and/or firing means in response to the discharge of a round, wherein the gas drive comprises a pneumatic cylinder and a pneumatic piston, the cylinder chamber communicates with the barrel bore through at least one transverse bore in the barrel, and powder gas is adapted to enter said cylinder chamber through said transverse bore and to move said cylinder and piston relative to each other against the force of a return spring. In order to provi...

A locked breech mechanism for a firearm having a trigger, cylinder, and hammer and in which the cylinder is adapted to accommodate cartridges such as a bottleneck cartridge. The breech mechanism includes a breech member disposed between the hammer and cylinder in combination with an operating member. The breech operating member is in the form of a yoke member having a rest position in which the breech member is disengaged from a cartridge in the cylinder, and an active position in which the bree...

For a handgun, interchangeable barrel and shroud combinations including a short barrel and shroud adapted to be interchanged with a longer barrel and shroud in which the longer shroud has integral therewith, a rearwardly extending elongated arm for supporting from the rear end thereof, a rear sight. The rear sight may be adjustable for elevation only or for elevation and windage.

A revolver characterized by an improved hand, strut and transfer bar construction includes a frame, a cylinder and associated actuator for the cylinder supported in the frame, a trigger and a hammer also both mounted in the frame. The hand is pivotally supported from the trigger preferably by means of a pivot pin at the lower end of the hand. When the trigger is pulled, the hand is for operating the cylinder actuator to rotate the cylinder to the next position prior to firing. The transfer bar o...

A firearm that is preferably a revolver has an improved gain bolt construction, particularly for use in larger caliber weapons such as a 44 Magnum revolver. The gain bolt design indirectly assists the hand in particular in the final indexing of the cylinder. The revolver comprises a frame, a hand grip, a trigger, a hammer, a cylinder, and a hand arrangement for operating the cylinder. The trigger is pivotally supported in the frame and has a front flange for operating the bolt which is selective...

A firearm comprises a chamber member, which is separate from the barrel and defines a chamber and which in a firing block, which is fixed to the receiver, is reciprocable between a firing position and a loading position in a direction which is transverse to the longitudinal direction of the barrel. When the chamber member is in its loading position its chamber is freely accessible and at one end communicates through a loading opening of the firing block with the interior of a magazine holder and...