S-Thunder Shocker Airsoft 40mm Shell Std Blue 40mm Airsoft/paintball gas launcher shell All metal construction Projectiles: Airsoft BBs, Paintballs, Colored Powder Capacity 80 Airsoft BB Pellets, 7 x 11mm Paintballs or 4 x 17mm Paintballs Powered by: Green Gas or C02 (gas not included)