Nuprol Green Gas 2.0 1L Bottle 10.5oz Gas for Airsoft Guns x2 PACK 300G (1L) Nuprol Green Gas Bottle PACK OF 2 High Performance Give your FPS a boost whilst keeping everything running smooth and clean An excellent all year round gas. CFC Free - Silicone Lubricant COMES WITH FREE BULLDOG AIRSOFT SPEED LOADER