R&B ARMS AR15 10.5in 5.56 barrel is the perfect barrel to add your next AR-15 build . This barrel is made from 4150 CrMoV . With a Nitrided finish and nitrided extension to increase corrosion resistance. R&B Arms has a Carbine-Length gas system with a .750″ gas port and a 1:7 twist, this barrel provides top accuracy and precision for your 5.56 build. Proudly made in the U.S.A. veteran owned and operated business
We will ensure satisfaction with every AR15 10.5in 5.56 barrel and make sure its the right fit for your rifle.