IPROS
Integrated Piston-Recoil Operating System is a revolutionary patented hybrid operating system that combines both LONG RECOIL ACTION and a GAS PISTON that utilizes or absorbs all free recoil in typical high-powered caliber rifles.
Integrated Piston-Recoil Operating System is a revolutionary patented hybrid operating system that combines both LONG RECOIL ACTION and a GAS PISTON that utilizes or absorbs all free recoil in typical high-powered caliber rifles.
