US 11,808,540 B2
Safety mechanism for blowback firearm
Tyler Rainaud, Nottingham, NH (US); and Jesse D. Cole, Newmarket, NH (US)
Assigned to Sig Sauer, Inc., Newington, NH (US)
Filed by Sig Sauer, Inc., Newington, NH (US)
Filed on Mar. 16, 2022, as Appl. No. 17/696,070.
Prior Publication US 2023/0296335 A1, Sep. 21, 2023
Int. Cl. F41A 3/10 (2006.01)
CPC F41A 3/10 (2013.01) 19 Claims
OG exemplary drawing
 
1. A breechblock assembly for a firearm, the breechblock assembly comprising:
a breechblock extending along a central axis and configured to reciprocate along a top of a receiver between a recoil position and a battery position;
an actuator slidably received through an opening in the breechblock, the actuator having a first end and a second end, wherein the actuator is movable between a first vertical position and a second vertical position;
a lever on the breechblock, the lever in contact with the second end of the actuator and movable between a blocking position and a non-blocking position in response to the actuator moving between the first vertical position and the second vertical position; and
a spring between the breechblock and the lever, the spring biasing the lever to the first vertical position;
wherein when the actuator is in the first vertical position the lever is in the blocking position and prevents the firearm from firing, and when the actuator is in the second vertical position the lever is in the non-blocking position.