Description
Weight:1.97 lbs
Nitromet™ 5.56 M4 Barrel Carbine Gas System 1-7 Twist
Match-quality Nitromet barrel has been treated with Nitromet (salt bath nitrocarburized) inside and out with a hardened finish that results in a bore life 40% greater than with traditional chrome-lining without affecting accuracy. Barrels are made of 4150 Chrome Moly Vanadium steel, chambered for 5.56mm NATO, button rifled with 1-7″ twist rifling, and machined to a standard M4 profile. Gas port drilled for a carbine length gas system. Comes with a NiB-X coated barrel extension installed to help the bolt unlock exceptionally smoothly, especially when used with a WMD NiB-X coated bolt and complete BCG (available separately).
