11.5" AR15 5.56 .223 Barrel

This AR-15 11.5" M4 contour parkerized 5.56 NATO barrel has a carbine length gas system with a 1:7 twist. Our 5.56 NATO parkerized rifle barrels are made from the finest 4150 Chrome Moly Vanadiumand precisely rifled for high accuracy at a great price.