Jammed Gas Block Piston AR Rifle

Our Gunsmith received a new challenge, today. We had a jammed gas block on a Piston AR and somehow our talented gunsmith has successfully fixed the issue. AR Piston AR Rifle’s typically begin to get residue after a lot of usage. This will eventually cause the rifle to then jam up (think of trying to unscrew a stuck toothpaste cap). This will only happen if the gun is not properly cleaned after each use.