Includes CO2 adapter & filled 12-oz. CO2 tank Fits AirForce Condor, Talon & Talon SS guns Over 1,000 shots per CO2 tank Ideal for shooting indoors Easy to switch back to air No handpump or scuba tank required Quieter operation Ground shipping only How to switch from high-pressure air to CO2: Unscrew your AirForce air tank from your rifle Screw in your CO2 adapter into your rifle Screw in the filled tank into the other end of the adapter Start shooting! * When this tank is empty or down to a low level, fill up with more CO2 from a larger bulk-fill tank. This filled tank can be sent only by ground...no air shipping allowed!