A weapon includes a stationary barrel mounted fixedly in a frame, and a slide movably mounted to the frame for forward and backward displacement relative to the frame. A locking mechanism for the slide includes a retractable spring acting on the slide in a direction towards a forward-most position of the slide, and a pair of levers arranged under the barrel between the slide and the frame. The pair of have opposite end axes of rotation and are mutually rotatably connected by a common axis. The common axis lies under a line that extends between the end axes of rotation of the pair of levers.

A weapon includes a stationary barrel mounted fixedly in a frame, and a slide movably mounted to the frame for forward and backward displacement relative to the frame. A locking mechanism for the slide includes a retractable spring acting on the slide in a direction towards a forward-most position of the slide, and a pair of levers arranged under the barrel between the slide and the frame. The pair of have opposite end axes of rotation and are mutually rotatably connected by a common axis. The common axis lies under a line that extends between the end axes of rotation of the pair of levers.

The invention relates to a lock system for a firearm having an arrangement composed of at least two lever arms; in a manner similar to a toggle lever, the lever arms are connected to an axle or shaft in articulating fashion; the resulting toggle lever can be pivoted to both sides of a dead point in which the arrangement is maximally extended; and one of the lever arms is embodied as a hammer for a firing pin.

The invention relates to a lock system for a firearm having an arrangement composed of at least two lever arms; in a manner similar to a toggle lever, the lever arms are connected to an axle or shaft in articulating fashion; the resulting toggle lever can be pivoted to both sides of a dead point in which the arrangement is maximally extended; and one of the lever arms is embodied as a hammer for a firing pin.

Firearm comprising a projectile barrel (15), a firing chamber body (16) fixed to the barrel, a breech mechanism (12) for loading a projectile in the firing chamber and ejecting the spent cartridge from the firearm after detonation, a mobile bolt (1), and a receiver structure (13) that supports and guides the mobile bolt. The mobile bolt comprises lateral bearings projecting laterally from opposite sides of the bolt, a first pair of lateral bearings (4, 4) positioned towards a front portion of the bolt and a second pair of the lateral bearings (10, 10) positioned towards a rear portion of the bolt. The receiver structure comprises sidewalls (2, 2) each have bolt bearing raceway grooves (3, 3) slidably receiving and guiding the lateral bearings of the bolt, wherein a profile of a first portion (3a) of the bolt bearing raceway groove defines a non-constant height (H(y)) between upper and lower guide edges (18, 19) that varies as a function of the distance (y) from the firing chamber body (16), said profile comprising a velocity control portion with a slope (P) configured to impart a braking effect on the bolt during its sliding movement to slow down the rate of fire.

Firearm comprising a projectile barrel (15), a firing chamber body (16) fixed to the barrel, a breech mechanism (12) for loading a projectile in the firing chamber and ejecting the spent cartridge from the firearm after detonation, a mobile bolt (1), and a receiver structure (13) that supports and guides the mobile bolt. The mobile bolt comprises lateral bearings projecting laterally from opposite sides of the bolt, a first pair of lateral bearings (4, 4) positioned towards a front portion of the bolt and a second pair of the lateral bearings (10, 10) positioned towards a rear portion of the bolt. The receiver structure comprises sidewalls (2, 2) each have bolt bearing raceway grooves (3, 3) slidably receiving and guiding the lateral bearings of the bolt, wherein a profile of a first portion (3a) of the bolt bearing raceway groove defines a non-constant height (H(y)) between upper and lower guide edges (18, 19) that varies as a function of the distance (y) from the firing chamber body (16), said profile comprising a velocity control portion with a slope (P) configured to impart a braking effect on the bolt during its sliding movement to slow down the rate of fire.