The PX4 .177 air pistol is not only a BB gun; it's a pellet gun, too! It will shoot either projectile from its revolutionary dual-ended magazine. This 16-shot repeater will have you shooting as fast as you can pull the trigger. There's an 8-shot rotary clip on one end of the stick mag and another at the other end. Since it shoots BBs or pellets, you'll have more flexibility with ammo choices. Like the handgun it's replicating, the PX4 has real blowback action--it really kicks--giving you a feeling of power that most airguns only hope to achieve!