Proof Research AR-Type Barrel 20" for AR-Style, Stainless - 130384

Our core focus has been on improving the performance and reliability of the AR platform through innovative barrel designs. The implementation of the caliber matched gas system (CAMGAS) allows us to precisely tune the gas system for each specific cartridge and barrel length. While the AR-15 and AR-10 were initially optimized for 223REM, 5.56x45mm and 308 win/7.62 NATO rounds, the introduction of higher-performance options like the 22 Nosler and 6.5 Creedmoor has resulted In increased bore pressure deeper into the barrel. By strategically adjusting port positions, we maintain the original gas system pressure of the AR platforms, resulting In reduced recoil, minimized receiver fouling, improved extraction reliability and decreased brass wear. This leads to heightened target accuracy and extended shooting sessions, all while taking full advantage of cutting-edge high performance cartridges.