Enhance your firearm's performance with the Guntec USA PTUBE-B 223/5.56 Rifle Pistol Length Gas Tube, engineered for precision and durability. This gas tube features a robust black nitride finish, ensuring longevity and resistance against wear. At a length of 6.625 inches, it's designed for pistol-length rifles, providing optimal gas flow for superior cycling. US Made Black Nitride Finish Pistol Length 6.625 Length Upgrade your shooting experience with this reliable gas tube and enjoy enhanced reliability with every shot.