Umarex Hammer Carbine PCP Air Rifle Precharged pneumatic Rifled barrel Bolt action 2-round improved pressure seal magazine 35 cu. in. carbon fiber tank 4350 PSI/300 BAR fill pressure 3000 PSI regulator Max. velocity: 820 FPS (w/350-grain slug), 680 FPS (w/550-grain slug) Max. power: 565 FPE (w/550-grain slug), 523 FPE (w/350-grain slug) Up to 4 shots per fill Single-stage adjustable trigger Textured rubber buttpad AR Magpul-style textured pistol grip Integrated rear sling stud Integrated manometer (pressure gauge) Weaver/Picatinny optics rail Quick-disconnect Foster fill fitting Length of pull: 15.25" Trigger pull: 3 lbs. Weight: 8.2 lbs. Barrel length: 23.25" Overall length: 34.125" Made in the USA