Barra 250z PCP Air Rifle Precharged Pneumatic System Available in .22 or .25 caliber M-LOK compatibility Adjustable buttstock Picatinny optics rail Bolt action 322cc cylinder Fill Pressure: 250 BAR (approx. 3,625 PSI) Externally adjustable regulator Integrated barrel shroud reservoir 1/2"x20 threaded barrel 2-stage adjustable trigger Cross bolt safety Overall length: 43.5" Weight: 6.17 lbs Barrel: 27" rifled barrel with 1:18 twist rate Velocity: 1,000 FPS in .22, 900 FPS in .25 Shots Per Fill: 45 in .22 cal @ 40 FPE w/ 18.1gr pellet, 45 in .25 cal @ 44 FPE w/ 25.39gr pellet (Regulator set to 2000 PSI) Energy: 50 FPE 6-position adjustable stock AR-style grip