R&B ARMS 16.1in .300 Blackout barrel is the perfect barrel to add your next AR15 build . This barrel is made from 4140 CrMoV Steel with a Nitrided finish and nitrided extension. Featuring a pistol length gas system with a .750″ gas port and a 1:7 twist, this barrel provides top accuracy and precision for your .300 Blackout build. Proudly made in the U.S.A. veteran owned and operated business
We will ensure satisfaction with every AR15 300BLK Barrel and make sure its the right fit for your rifle.