Ninja PCP REGULATOR 3,000 PSI Output For Air Rifle - Not Paintball Designed for use with 4500 HPA Tanks - For Air Rifles ONLY! 3000 psi Preset Pressure Regulator 2 Safety Relief Valves to prevent over-pressurizing Must use the Ninja Fill Station. / Fill Valve made from heat treated and hardened steel. Made and assembled in the USA! READ INSTRUCTIONS BEFORE INSTALL!