AirForce Condor CO2, Incl adapter, 20-oz. CO2 tank air rifle caliber: 0.22 velocity: 734.00 ft/sec Warranty: Limited Lifetime Warranty 1,000+ shots on one CO2 tank! Gun, no open sights, CO2 adapter, filled 20-oz. CO2 tank (must use a scope; 20-oz. tank is so big that you cannot see the front sight)... Price: $ 524.89