The PT-85 uses an innovative blowback system to provide realistic shooting action and feel. This is achieved by using a small amount of air to move the slide backward when firing, so the gun cycles like a semiautomatic pistol. Power comes from 12-gram CO2 cartridges (not included). Rifled steel barrel and textured grips. Velocities up to 450 fps can be attained using Gamo’s PBA® Platinum .177 cal. pellets. Magazine capacity is 16 pellets. Manual safety mechanism. Overall length: 7.8". Weight: 1.5 lbs.