Green Gas
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Green Gas is the propellant typically used to drive Gas Blow Back Airsoft guns, consisting of propane with small amounts of silicone oil added. Some brands may advertise their product as Green Gas, or refer to it as "Ultra Green Gas", "Xtreme Green Gas" or similar, when in fact the propellant is not Green Gas/propane. Products advertised as being more powerful than Green Gas are typically Red Gas, correctly known as HCFC-22.
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[edit] Usage
Green Gas is produced by airsoft manufacturers. Players in cooler climates prefer to use Green Gas because HFC134a is often insufficient to cycle guns in cooler temperatures. Green Gas should be used with caution as it may damage guns which are not designed to handle the extra power. Generally, guns made in Japan cannot handle Green Gas in their stock form, because of Japanese law, which prohibits the use of metal slides; the plastic slide can be replaced with an aftermarket metal one.
[edit] Propane Adapter
After researching the properties of Green Gas, it was determined by Carlton Chong of Airsoft Innovations that Green Gas is propane with silicone oil added. Since Green Gas propellant is propane, some airsofters are increasing the economy of consuming the propellant by using consumer available propane canisters originally used for fuelling camping stoves, lanterns, barbecues and welding torches. To provide compatibility between the airsoft Gas Blow Back guns and the propane canister outlet, a propane canister adaptor, produce by Airsoft Innovations, must be used and silicone lubricant needs to be supplied after use.
[edit] Safety
Green Gas containers are a fire hazard, and are not recommended. These containers do not have a DOT (Department Of Transport) rating on them. They have been known to blow-up while in storage, and transport
