WMD Guns Gas Tube Rifle Length NiTroMet

The WMD Guns NiTroMet gas tube is a direct replacement for rifle-length AR-15 gas systems. Gas tubes are critical wear components that can erode over time from hot, corrosive gases—this nitride-treated option provides enhanced corrosion resistance and durability compared to standard stainless steel tubes. If you're rebuilding an upper receiver or replacing a worn gas tube, this is a straightforward upgrade.

The NiTroMet surface treatment bonds a hard nitride layer to the steel, extending service life and reducing friction. This is a drop-in part requiring only a gas block roll pin for installation. Standard rifle-length dimensions ensure compatibility with any mil-spec AR-15 upper receiver using a rifle-length gas system (typically found on 20-inch barrels).

• Part Type: Gas Tube
• Length: Rifle (standard for 20" barrel gas systems)
• Compatible Firearms: AR-15 / M16 platforms with rifle-length gas systems
• Material: Steel
• Finish: NiTroMet Nitride
• Installation: Drop-In (requires gas block roll pin)
• Includes: Gas tube