This is a Ballistic Advantage Barrel known as the Modern Series chambered in 556NATO, model BABL556010M.
Ballistic Advantage 5.56 chambered 14.5 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.
Features:
Length: 14.5";Material: 4150 Chrome Moly Vanadium;Profile: Government;Finish: QPQ Corrosion Resistant;Gas System Length: Mid-Length;Gas Block Journal: .750
Twist Rate: 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 25 oz
