SIG Sauer MPX PCC PCP Air Rifle Precharged pneumatic air rifle Shoots .22 caliber pellets 1,100 PSI regulated pressure 3,000 PSI fill pressure 213cc Bottle 100 shots per fill Telescoping stock Rifled barrel 3.5 lb trigger weight Max. Velocity: 700 FPS with 14.5 grain pellets Max. Energy: 16 FPE with 14.5 grain pellets Semi-auto M-LOK Slots Picatinny optics rail Flip up sights Metal receiver Barrel length: 15.75" Overall Length: 37" Weight: 8lbs