This AR-15 16" M4 contour, parkerized 5.56 barrel has a carbine length gas system with a 1:9 twist. 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. Use an NSPEC ar barrel in your next AR15 build and experience superior performance backed by a lifetime warranty!
All finished barrels go through a 100% inspection process. Inspections Equipment includes CMMs and Air Gauges for the bores as well as visual and machine inspection.
