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This 5.56 chambered 13.7 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.
|Material||4150 Chrome Moly Vanadium|
|Finish||QPQ Corrosion Resistant|
|Gas System Length||Carbine|
|Gas Block Journal||1.03" Gas Block Seat for .750" Low Profile Gas Blocks Only|
|Twist Rate||1:7 inches|
|Weight||25oz (includes Low Pro)|
|Other Info||HP and MPI Tested|