NUPROL 2.0 GREEN 300g Gas – Green, Nuprol’s newer, cleaner and higher performance airsoft gas now named NUPROL 2.0. A slightly larger bottle over its predecessor with cleaner propane gas and silicone contents internally. Give your FPS a boost whilst keeping everything running smooth and clean. An excellent all year round gas from Nuprol. A must for any GBB pistol, Airsoft carbine and other gas devices.