WMD Guns NitroMet Gas Tube – Mid-Length AR-15

The WMD Guns NitroMet Gas Tube is a direct replacement for mid-length AR-15 gas systems. Built for shooters who demand long-term reliability under high round counts and harsh conditions, this gas tube features WMD's proprietary NitroMet coating—a surface treatment that significantly reduces carbon fouling and resists corrosion better than standard stainless steel tubes. Mid-length systems are favored for their balanced gas pressure and reduced recoil impulse compared to carbine-length setups, making this an ideal component for builds prioritizing accuracy and smoother cycling.

The tube is constructed from 304 stainless steel and treated with WMD's NitroMet process, which penetrates the metal surface to create a self-lubricating, ultra-hard finish. This coating prevents gas tube erosion and makes carbon buildup wipe away with minimal effort. Installation is straightforward for anyone familiar with AR-15 assembly—this is a drop-in part requiring only a roll pin and gas block alignment. Includes roll pin.

• Part Type: Gas Tube
• Compatible Firearms: AR-15 Mid-Length Gas Systems
• Material: 304 Stainless Steel
• Finish: NitroMet Coating
• Installation: Drop-In
• Includes: Roll Pin