The gas tubes have an extremely durable Black Nitride finish that increases corrosion resistance, wear resistance, fatigue strength and cosmetic appeal. These gas tubes look great under a handguard because they match the rest of the black AR-15 parts and are more durable than standard gas tubes. Available in pistol, carbine, mid-length, and rifle lengths. Does not include a roll pin.
SPECS: Mil-Spec 304 Stainless Steel, Black Nitride.