Ballistic Advantage Performance Series Barrel Black 5.56 11.3 Carbine

Performance Series Barrel Features This 5.56 chambered 11.3 inch Performance Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. Our Performance Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension. Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits. "The original BA Hanson profile barrels have a .750" diameter at the gas block journal and it is more of a light/medium contour. The BA Hanson .625" barrels are called this due to .625a ^2 diameter at the gas block journal. This profile is a thinner and lighter weight version of the original BA Hanson profile. Each BA Hanson barrel comes with a pinned lo-pro Gas Block already installed which makes them an excellent value." Performance Series Barrel Specifications Length: 11.3 Material: 4150 Chrome Moly Vanadium Profile: Hanson Finish: QPQ Corrosion Resistant Twist Rate: 1:7 inches Gas System Length: Carbine Muzzle: 1/2x28 Threaded Caliber: 556NATO Weight: 20oz Other Info: HP and MPI Tested