The P-430 CO2 powered air pistol shoots both .177 caliber pellets and BBs at 495 feet per second. This pistol comes with a pellet clip that holds 16 rounds (each end of the magazine features a rotary clip holding eight pellets each). The P-430 features a textured grip and a tactical rail underneath the barrel that allows mounting accessories like lasers or lights. It also features semi-auto action and fixed sights. CAUTION: Only use standard-skirt pellets with Gamo CO2 pistols. To avoid damaging your magazine"" never use long-skirt pellets"" such as Red Fire"" Blue Flame"" Glow Fire"" PBA Bullet"" Magnum"" Master Point"" Armor"" Lethal"" Rocket or TS-10.