ALEXANDRIA, Va., March 5 -- United States Patent no. 12,241,706, issued on March 4.
"Firearm recoil buffer end of stroke damper" was invented by Bryan Zeman (Lake Havasu City, Ariz.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a drop-in unit end of stoke firearm recoil damper for a firearm having a recoil buffer that linearly reciprocates in a recoil tube. The drop-in damper unit includes a housing cup and a resilient cushion. The cup is configured to fit within a recoil tube and has an internal flange. The resilient cushion is configured to fit within the housing against the flange. The cushion has a tubular shape with a longitudinal central opening and first and second frustoconical end surfa...