This powerful CO2 pistol made by WG is based on the M9 design. It features a metal slide, tactical rail, and fiber optic sights. The blowback in this pistol is very crisp and the gun shoots up to at an amazing 500 FPS with 0.20g BBs! This is a blowback pistol which means that the slide shoots back when each shot is fired, like a real pistol. It also has a working slide lock, causing the slide to lock back after the last round has been fired. A tactical rail is mounted on the front of the pistol which can be used to add a laser or tactical flashlight.