Kral Arms Puncher NP-500 PCP Air Rifle Precharged pneumatic Available in .22 or .25 caliber Magazine capacity: 12 shots (.22), 10 shots (.25) 1/2" UNF muzzle threads Air tube capacity: 500cc Max fill pressure: 3,625 PSI / 250 BAR Max velocity: 900 FPS (.22), 820 FPS (.25) Max power: 32 FPE (.22), 38 FPE (.25) Max shots per fill: 144 (.22), 120 (.25) Side-lever action Adjustable power Adjustable trigger Manual safety Shrouded barrel 11mm dovetail and 22mm Weaver rail for optics mounting Overall weight: 8.15 lbs Overall length: 30.3"-33.75" Barrel length: 16" Length of pull: 14.3"-17.75" Includes two magazines, fill adapter, and hard case Please Note: It is recommended to use dovetail rings. The weaver mount is not standard and certain weaver/picatinny mounts may not fit the rail correctly.