US12467706 - Trigger mechanism for firearms
The invention is aimed at improving the accuracy of shooting by reducing the force on a trigger of a firearm during firing. The technical result is achieved by the fact that the design of the trigger mechanism includes a housing in which a hammer and a hammer spring are installed, a tubular axle on which the trigger having a groove allowing longitudinal movement along the axle is installed, thereby disengaging a return mechanism installed in its housing, a roller sear, and a single-fire sear. To engage the return mechanism, the trigger and the hammer are equipped with cams, and when a breechblock carrier is recoiled, the hammer is lowered and its cam affects the trigger cam, forcing the trigger to move backwards (if it has been moved to a forward position before). The return mechanism is also engaged when a safety lock is activated.