2A Armament

2A Armament Receives Regulated Bolt Carrier Patent U.S.A. –-(Ammoland.com)- New from 2A Armament and the USPTO! 2A Armament has been awarded the patent for their gas regulation system that has been incorporated in their bolt carrier system by the USPTO. This system allows adjustments in the felt recoil, spent cartridge ejection pattern, as well as