What is the difference between red gas, green gas, and CO2 for Airsoft guns? Which should you use when? - Quora

Answer (1 of 8): For a start, CO2 and Green gas/Red gas/Duster gas aren’t typically interchangeable. Only a few airsoft weapons I know of are capable of being powered off of a CO2 charger, and they’re far from standard. Most pistols and rifles simply use a 12 gram CO2 bulb, of which there is no a

Green Gas vs. Co2: Which is Best for Airsoft? — eHobbyAsia

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