This 5.56 chambered 13.7 inch Performance Series Barrel is machined from CrMoV steel with a QPQ Corrosion Resistant Finish. BA's performance series barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.
Ballistic Advantage BABL556036F Performance Series BA Hanson Mid-Length 5.56x45mm NATO 13.70" Threaded Black QPQ Chrome Moly Vanadium, Fits AR-15