FX DRS MkII Tactical Takedown PCP Air Rifle Upgraded Air Pressure Barrel System Barrel inlet with Dynamic technology for more power Removable rear bottle (Carbon Fiber or Aluminum) 35cc modular Power Plenum Sidelever cocking Pre-charged pneumatic powerplant Aluminum over-the-barrel cylinder 1/2 UNF threaded muzzle Fill pressure: 230 BAR/3,335 PSI Air capacity: 591cc (Carbon Fiber), 511cc (Aluminum) Shots per fill (Carbon Fiber): 250 (.177), 183 (.22) Shots per fill (Aluminum): 217 (.177), 127 (.22) Magazine capacity: 16 (.177), 14 (.22), 12 (.25) Max. Velocity: 900 FPS w/ 8.44g (.177), 850 FPS w/ 15.89g (.22), 800 FPS w/ 25.4g (.25) Max. Energy: 43 FPE (.177), 88.8 FPE (.22), 102 FPE (.25) Superior Smooth Twist X barrel AMP MKII (Adjustable Match Precision) regulator 2-stage adjustable trigger FX UG1 textured ergonomic AR-compatible grip M-LOK accessory rails on both sides of forearm Arca-Swiss accessory rail on bottom Full-length Picatinny optics rail with 30 MOA cant Molded cheek rest over bottle Adjustable ventilated rubber buttpad Foster Quick-Disconnect fill Barrel length: 300mm/11.81" Overall length: 30.9"/785mm Weight: 6.6 lbs./2.99 kg (Carbon Fiber), 7.1 lbs./3.22 kg (Aluminum)