CO2 has been a staple of high-performance Airsoft pistols for years. Everyone, from the beginner to experienced veteran, appreciates the power and realism that CO2 powered pistols deliver.In Airsoft,CO2 refers to small canisters, more commonly called "cartridges" or "Jets" of CO2 that are used as a power source for the gun. The cartridges are disposable; fit inside the magazine or handle of the pistol, and are easy to change.The amount of rounds fired before a cartridge needs to be replaced varies depending on the type of pistol; a cartridge will last anywhere from 50 to 150 rounds.

 

The benefits of using CO2 over spring powered pistols are: increased power, consistency, heavier weight,and realism. The use of CO2 also allows the option for "blow-back" models which feature a simulated recoil effect, or "kick" from the slide with every shot fired, an effect appreciated by the enthusiast looking for a higher degree of realism. More and more new generation CO2 pistols are being made with an increasing amount of metal included in their design.