Our 8.5‰Ыќ 5.56 barrels are black nitride coated and made from 4150V with 1/2 x 28 threads suitable for any 5.56 flash hider or muzzle breaks. They come with a 1/7 twist and with the right ammo and shooter can hold Sub MOA groups. Perfect for any 5.56/.223 SBR or pistol build and also sold as a complete side charging upper. 8.5 inches, 5.56 chamber, 1/7 twist, made from 4150V, nitride coated with 1/2x28 threaded muzzle.
