Air Venturi Avenge-X Bullpup PCP Air Rifle, Wood Stock Precharged pneumatic Reversible sidelever cocking Wood stock Interchangeable calibers: .177, .22, .25 (caliber change kits sold separately) Externally-adjustable, stainless steel regulator (up to 3,000 PSI) Easily-accessible hammer spring adjustment screw Externally-adjustable transfer port (Two Position) Two-stage adjustable trigger 210cc air tube or 400cc carbon fiber bottle Shots per fill (tube)*: 110 (.177), 80 (.22), 55 (.25) Shots per fill (bottle)**: 210 (.177), 180 (.22), 110 (.25) Max. fill pressure: 4,351 PSI (300 BAR) Max. velocity: 1160 FPS (8.1gr), 1100 FPS (14.6gr), 980 FPS (25.4gr) Max. power***: 29 FPE (.177), 49 FPE (.22), 60 FPE (.25) Fully shrouded barrel with 1/2x20 threaded muzzle and knurled cap Integral baffle stack that also centers the barrel Dual gauges -- reg. pressure (LH Side) and fill pressure (RH Side) Male quick-disconnect fill fitting Easy access degassing screw Manual safety Long Weaver/Picatinny optics rail Checkered grip and forearm Ventilated rubber buttpad Adjustable cheekpiece Barrel length: 22.8" Overall length: 33" (tube version), 37.5" (bottle version) Weight: 7.95 lbs. (tube version), 7.8 lbs. (bottle version) High Capacity Magazine: 20 rds. (.177), 16 rds. (.22), 13 rds. (.25) Standard Capacity Magazine: 10 rds. (.177 & .22), 8 rds. (.25) Includes two magazines (standard and high-capacity), single-shot tray, 5 Allen wrenches * - 10.3gr @ 930 FPS (.177), 18.13gr @ 910 FPS (.22), 25.4gr @ 895 FPS (.25) ** - 10.3gr @ 900 FPS (.177), 18.13gr @ 880 FPS (.22), 25.4gr @ 880 FPS (.25) *** - 13.4gr @ 990 FPS (.177), 25.4gr @ 935 FPS (.22), 34gr @ 890 FPS (.25)