The Mayhem GBB Gas Blowback Pistol offers convincing feel, hold and recoil action with its polymer frame, metal slide and fully functioning blowback operation. The Mayhem’s realistic weight adds to the drama of this sidearm. Use it for close-quarters-combat and training exercises. Reaching up to 1 joule of energy, the Mayhem GBB has a quick-detach slide for convenient maintenance. With the push of a release button the full-metal magazine makes for simple loading of CO2 and BBs with delay-free reloading.