This .308 chambered (DPMS style) 18 inch Heavy Profile Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.
Material: 4150 Chrome Moly Vanadium
Finish: QPQ Corrosion Resistant
Gas System Length: Rifle
Gas Block Journal: .750"
Twist Rate: 1:10 inches
Muzzle: 5/8x24 Threaded
Weight: 52.5 oz