This 5.56 NATO chambered 11.5 inch Cold Hammer Forged barrel is machined from CrMoV steel with a manganese phosphate finish and chrome lined bore. Their limited run of Cold Hammer Forged barrels feature an M4 Feed Ramp Extension and are HP and MPI tested.

• Length – 11.5";Material – Chrome Moly Vanadium"
• Profile – Hanson
• Finish – Phosphate
• Twist Rate – 1:7";Gas System Length – Carbine"
• Gas Block Journal – 1.03 Gas Block Seat for .750" Low Profile Gas Blocks Only"
• Muzzle -1/2×28 Threaded
• Weight – 26oz (includes Low Pro)
• HP and MPI Tested