AR15 9mm Barrel
R&B ARMS 5.5in 9mm barrel is the perfect barrel to add your next pistol caliber AR15 build . This barrel is made from 4150 CrMoV Steel with a Nitrided finish and nitrided extension for improved corrosion resistance. Features a 1:10 twist, this barrel provides top accuracy and precision for your 9mm build. Proudly made in the U.S.A. veteran owned and operated business
We will ensure satisfaction with every AR15 9mm barrel and make sure its the right fit for your rifle.