Abstract: A pistol having a frame with guideways for reciprocation of the slide at firing of this pistol, the guideways being separate from each other, one of these guideways having two bearing surfaces adjoining the surface of the slide at the bottom side of the latter and the other guideway having one bearing surface adjoining the respective surface of the slide at the top side of the latter, the other guideway being arranged atop the slide and being connected with the frame so that it is removable upon disassembly of the pistol.

Abstract: A firearm wherein a damper spring is positioned intermediate of a housing and a slide, associated with a return spring for the slide, one end of the damper spring bearing against the housing and the other end cooperating with the slide through an intermediate part. This part is maintained in permanent resilient contact with the housing in a direction transverse to that of the motion of the slide, and is movable relative to the housing jointly with the slide.

Abstract: A compensator for sporting firearms, made as a case formed by two bars which are interconnected by means of crosswise baffle plates provided with holes for a bullet to pass therethrough and having a width exceeding that of the top bar, with a cover attached to the case and embracing it over its bottom and both sides, and with powder gas outlet holes on the top of the compensator.

Abstract: A firing and trigger mechanism for increasing the accuracy of firing in which a hammer and a firing spring are held in a cocked position and in engagement with one arm of a bell crank. The other arm of the bell crank is engaged by a hammer catch that is connected with a trigger through a triggering rod resiliently urged to the hammer catch. The bell crank is resiliently urged against the hammer and the hammer catch by a spring, having one end bearing against the hammer catch. With the hammer in a cocked position, the spring urges the hammer catch against the bell crank, and as the latter are brought out of engagement, the bell crank loads the spring with an additional force that compensates for the friction forces between the bell crank and the hammer catch. These forces disappear when the bell crank and the hammer catch are disengaged.

Abstract: An aiming device for match weapons comprises a body with a backsight installed thereon, the body being fastened to an axle whose ends are installed in the openings of the base with a provision made for rotation and reciprocating movement by means of screws located in the body and used for vertical and horizontal corrections. Installed in the body is a mechanism for retaining the ends of the axle and the butts of the said screws in constant contact with the base.This mechanism comprises a spring located in the sleeve of the body, and a slope formed on the bottom of the sleeve at the side of the external surface adjacent to an appropriate slope formed in the base.The said mechanism provides for a constant elimination of all clearances in the movable joints of the aiming device in one direction, thereby providing, in turn, reliability and accuracy of operation of the device in the course of its entire service life.