AR-STONER Barrel AR-15 6mm ARC M4 Contour 1 in 8" Twist 16" Stainless Steel

The AR-STONER 6mm ARC Barrel is excellent for this potent and accurate cartridge. Manufactured from 416R Stainless Steel, this 1 in 8 Twist, M4 contour barrel gives you high quality at a great value. Additional features include feed ramps and a 5/8-24 threaded muzzle. The barrel extension and locator pin are both included and installed at the factory.