4.5" AR15 5.56 .223 Barrel AR15 .223 5.56 Barrel AR15-Barrel 5.56-.223-AR15

This AR-15 4.5" M4 contour, parkerized 5.56 barrel has a pistol length gas system with a 1:7 twist rate. Our 5.56 parkerized rifle barrels are made from the finest 4150 Chrome Moly Vanadium and precisely rifled for high accuracy at a great price.