Go at it with a REKT OpSix Co2 foam dart launcher that shoots darts faster and farther! The REKT OpSix dart pistol uses 12g Co2 cartridges that give this blaster its power. The Co2 cartridge loads in the back of the OpSix dart pistol just inside the rear of the grip. There's no spring to operate it, so it's easier to operate! Just muzzle load your next dart and pull the trigger. Just make sure you stock up on Valken 12g Co2 cartridges, REKT darts, and Valken eye protection so you are ready to get REKT!