Devastating, authoritative knockdown power! The Sumatra 2500 is an easy-to-cock, lever-action repeater. This precharged pneumatic (PCP) has two built-in chambers (500cc total) that hold high-pressure air (3,000 psi) from a scuba tank, hand pump or compressor. Plus, it has an adjustable cheekpiece! It has a two-stage adjustable trigger that is either double- or single-action. The ramp style rear sight is adjustable for windage and elevation, and the front sight is fixed. There are NO plastic parts in this gun! Accuracy is the name of the game when it comes to shooting, and the Sumatra 2500 excels in that area: 3/8" ctc at 30 yds. with Eun Jin pellets. To get the most from this airgun, you'll want to mount a scope on the 11mm dovetails. The finely rifled steel barrel (1:18 RH twist) is fed by a 6-shot rotary clip that makes for quick follow-up shots. The clip makes it easy to use longer pellets and even mix-and-match different pellet lengths and types. The adjustable power wheel has 13 settings, making this one of the most versatile powerhouses on the market! The extra large 500cc reservoir delivers lots of powerful shots so you don't have to refill so often. Muzzle energy ranges from 55.08 ft-lbs to 26.61 ft.-lbs. A hard Plano rifle case (PL1531) is strongly suggested! We tested the gun with Eun Jin pellets. Below are the shots, listed from first to the tenth: .22 caliber, 28.5 grains 1,034 fps 998.5 fps 1,017 fps 1,006 fps 1,013 fps 989 fps 994.7 fps 950.3 fps 990.2 fps 976.6 fps Includes 2 6-shot rotary clips, 2 fill probes (BSP & SAE), spare o-rings for fill probes, UK valve conversion kit & a hex key for adjusting the cheekpiece. hunter's dream! Power to spare, unbeatable accuracy, adjustable cheekpiece. Includes 2 6-shot rotary clips, 2 fill probes (BSP & SAE), spare o-rings for fill probes, UK valve conversion kit & a hex key for adjusting the cheekpiece. A hunter's dream in .25 caliber! Power to spare, unbeatable accuracy, adjustable cheekpiece. Includes 2 6-shot rotary clips, 2 fill probes (BSP & SAE), spare o-rings for fill probes, UK valve conversion kit & a hex key for adjusting the cheekpiece. DISPONIBLE EN CAL .25(6.35) A UNA VELOCIDAD DE 1000PPS, Y EN CAL .22(5.5) A UNA VELOCIDAD DE 1260 PPS