WMD Guns Rifle Length Gas Tube Features The WMD Guns Rifle Length Gas Tube starts with Mil Spec 304 stainless steel a material chosen for its inherent resistance to heat and corrosion in the harsh environment near a rifle s gas port. WMD then salt bath nitrocarburizes the tube and applies its proprietary Nitromet finish bringing the surface hardness up to Rc 55 for serious durability under the repeated heat cycling a gas tube endures. That same Nitromet process gives the tube its rich deep black color which resists fading and wear far better than a simple coating. Built specifically for rifle length gas systems this tube is sized correctly for AR-15 and AR-308 platforms running that gas system length. Installation is straightforward and the tube ships with a roll pin included for assembly so the only additional tool needed is a roll pin punch and hammer. A correctly fitted durable gas tube is critical to reliable cycling since a worn or corroded tube can lead to gas leakage and function issues down the line. WMD Guns built this tube to resist that kind of long-term degradation giving shooters a drop-in replacement or upgrade for a factory tube that is wearing out. The WMD Guns Rifle Length Gas Tube is available for sale at GrabAGun for AR-15 and AR-308 owners who want a durable corrosion resistant gas tube upgrade. WMD Guns Rifle-Length Gas Tube Specifications Manufacturer: WMD Guns Model: Rifle-Length Gas Tube Compatible Hosts: AR-15 AR-308 Gas System Length: Rifle Color: Black Finish: Nitromet Material: Stainless Steel Length: 15.19 Available At: GrabAGun