Piranha, Gun Metal, GTI Marker, Includes Tournament Grade Semi-Automatic Powered By Either CO2 Or N2, ,68 Caliber Paintballs, Interchangeable Threaded Aluminum Barrel With Muzzle Break, Corrosion Resistant, Aerospace Grade Aluminum With Wear Resistant Teflon Flesh On All Internal Parts, Flush Cocking Bolt System, Vertical Feed, Closed Receiver, Grip Frame Is Durable Compact Polymer With Double Trigger & Guard, Bottom Line Adapter Designed To Accept Pure Energy, Air Systems, 12+ Shots Per Second, Blister Pack.