This 5.56 chambered 18 inch Performance Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. Our Performance Series Barrels feature a FailZero 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.
Length – 18″
Material – 4150 Chrome Moly Vanadium
Profile – Hanson
Finish – QPQ Corrosion Resistant
Gas System Length – Mid-Length
Gas Block Journal – 1.03″ Gas Block Seat for .750″ Low Profile Gas Blocks Only
Twist Rate – 1:7 inches
Muzzle – 1/2×28 Threaded
Weight – 41oz
Other Info – HP and MPI Tested