7.5" AR15 5.56 .223 Barrel

This AR-15 7.5" M4 contour, parkerized 5.56 NATO barrel has a pistol-length gas system with a 1:7 twist. Our 5.56 NATO parkerized pistol barrels are made from the finest 4150 Chrome Moly Vanadium and precisely rifled for high accuracy at a great price.