Breechblock

Patents tagged Breechblock

Feb 10, 2026

US12546549 - Firearm

A firearm comprises a frame; a barrel; a hand grip; a breechblock slidable along the frame; a striker slidable in the breechblock; a longitudinal elastic device for the recovery of the recoil kinetic energy for rearming the striker; and a closing block for locking the breechblock in the closing position, the closing block having a body which extends longitudinally and having a rear wall engaged with a downward protrusion integral with the barrel, a front wall engageable with the breechblock and a longitudinal recess which opens at the front wall, where the longitudinal elastic device for the recovery of kinetic energy has a longitudinal rear portion housed in the recess and a longitudinal front portion retractable towards the inside of the recess, and is longitudinally interposed between a front stop abutment solidly constrained to the breechblock and a rear stop abutment solidly constrained to the frame.

Feb 3, 2026

US12540783 - Bolt head of a breech block and breech block with such a bolt head

A bolt head of a breech block includes a base element, a breech face arranged on the front of the base element, and a bezel enclosing the breech face in an annular fashion. The bezel is formed by several bezel parts detachably fastened to the base element.

May 27, 2025

US12313364 - Safety mechanism for blowback firearm

A breechblock assembly for a firearm includes a breechblock extending along a central axis and configured to reciprocate along a receiver of the firearm between a recoil position and a battery position. A lever on the breechblock is movable from a blocking position to a non-blocking position in response to the breechblock moving from the recoil position to the battery position. A spring biases the lever to the blocking position. When the lever is in the blocking position the lever prevents the firearm from firing.