Telescopic breech for shoulder firearm has cage connected to cocking lever and sliding within breech

摘要

The rotary locking straight pull firearm breech has a cage (3) connected to the cocking lever (4) and slides between the flange of the breech (1) and the bolt (6). The cage actuates the breech to engage against the barrel lugs and the bolt continues forward to engage against the end of the barrel.