SELF-LOADING GUN Russian patent published in 2020 - IPC F41C3/00 F41A3/00 

FIELD: weapons and ammunition.

SUBSTANCE: self-loading pistol comprises a handle, a frame with an axis-reducer, a barrel with an insert, a stator with a safety lock, a return spring and a firing mechanism. On the lower part of the barrel insert there is a chamfer for interaction with the barrel delay axis to limit movement of the barrel and the bolt forward. On the fuse axis there is a projection for interaction with the trigger and the locking arm of the sear. For this purpose, sear is equipped with locking catch, and trigger with locking tooth. When the trigger is turned from the "combat cocking" position to the locked position, the force of the firing spring changes. With the fuse on, the trigger can not be turned – to one side, to the striker, by means of a protrusion on the fuse axis, and to the other one (to cocking) by interaction of its locking tooth with the locking catch of the sear. In its turn the trigger in the "locking" position excludes the possibility of the bolt movement backwards, and the sear, in which the locking arm is fixed by the ledge on the safety lock axis, without possibility of rotation, excludes the movement of the trigger rod and rotation of the trigger connected to the pull rod. Frame is made in the form of U-shaped stamped structure.

EFFECT: higher combat operational service life of gun, improved accuracy and accuracy of firing, increased safety with fuse and maneuverability during firing in operational situation.

1 cl, 5 dwg