AR .223, 5.56 and .308 Black Nitride Gas Tube With Roll Pin - Rifle Length 15.125in

AR .223, 5.56 and .308 Black Nitride Gas Tube With Roll Pin - Rifle Length 15.125" - SKU GTN04

Nitriding is a heat treating process that diffuses nitrogen into the surface of a metal to create a case-hardened surface.  Nitride is a not a coating , but a metal treatment which increases surface hardness, corrosion resistance, with no heat degradation. Correct dimensions and bends .  Easy install.  Comes with roll pin.