SELF-UNLOCKING DEVICE FOR RECOILING BOLT CARRIER AND BARREL IN A SEMI-AUTOMATIC RIFLE

摘要

the semi-automatic rifle includes a barrel (24) adapted to carry back to the back support (42) extended from the cylinder head containing the closure closing bolt (45) for compressing the spring (43), and a back locking device of self - (73, 76.78) comprising a self locking rod (76) mounted longitudinally on the sliding door closing bolt (42) and which is normally the rear face (39) of the barrel (24) in a position of battery and a brake dispositf (73),(78) for pushing the self locking rod (76) to the front through the early fall to separate the support (42) on the closure of breach of the gun (24) before the gun (24) reaches the end of its backward movement.