AR-10 .308 18" BA Heavy Profile Rifle Length Non-Threaded Barrel. This .308 chambered (DPMS style) 18 inch Heavy Profile Non-Threaded Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension. This barrel has a non-threaded muzzle and won't accept a muzzle device.
Material: 4150 Chrome Moly Vanadium
Finish: QPQ Corrosion Resistant
Gas System: Rifle
Gas Block: .750
Twist Rate: 1:10
Muzzle: Non-threaded, target crown