Ballistic Advantage's 5.56 chambered 13.9 inch Government Profile Mid-length 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
Twist Rate: 1:7 inches
Gas System Length: Mid-Length
Gas Block Journal: .750"
Muzzle: 1/2x28 Threaded