Use a high pressure air hand pump, such as the Umarex SuperFill Hand Pump that can pump up to 4,500 psi into an airgun's tank. Electric compressors that pump up to 3,000 or 4,500 psi are also available.The Gauntlet achieves these huge numbers of consistent, powerful shots from just one fill of its high capacity 13-cu. The built-in regulator delivers minimal FPS variation from shot-to-shot for long, flat shot strings this translates directly into outstanding accuracy for hunting, Field Target competition and just-for-fun plinking. This multi-shot repeater with an adjustable trigger uses easily loaded interchangeable 10-shot magazines for rapid bolt-action firing. One mag is supplied with the Gauntlet and additional magazines are available as accessories. The item "UMAREX UX Gauntlet PCP Powered Bolt Action. 22 Caliber Pellet Air Rifle 2252604" is in sale since Monday, March 2, 2020. This item is in the category "Sporting Goods\Outdoor Sports\Air Guns & Slingshots\Air Rifles". The seller is "viillarreal" and is located in Mission, Texas. This item can be shipped to United States.