ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,768,606, issued on Oct. 20.
"Firearm piston and fire control mechanism" was invented by Geoffrey Louis Ader (Acton, Mont.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A firearm comprising of a chassis, a barrel, a slide, and a reciprocating block connected to the chassis. The reciprocating block is operable to reciprocate with respect to the barrel between a chamber open position in which a face portion of the block is spaced apart from the breech end of the barrel and a chamber closed position in which the face portion of the block is proximate the breech end of the barre. A locking element selectively engages the slide and the block and operable to ...