H2K Paintball Tank Regulator Tool Airsoft Factory Parts 75 lb with magazine Operation: 34091 75 lb with magazine Operation: Airsoft CO2 Blowback Maximum Range: 150 feet Firing Mode: Semi automatic blowback Magazine Capacity: 22 + 1 Gas Propellant: 12g Co2 cartridge Muzzle Velocity: 328 FPS System: Semi Auto Gas Blowback BB: 6mm however it has been tested by our factory trained technician Never apply force with any object or strike the Tank Tool with any object to attempt to remove your regulator Please advise prior to use that all air should be vented from your air tank and zero psi should remain into tank prior to removal of any air tank regulator