The gas is a High power gas, and contains a light silicon based lubricant, keeping your guns running for longer and more efficiently. The lubricants inside the gas are non-greasy, making it easier to clean the residue out of the weapon after a long days skirmish. We have gone and ditched the old for the new and better, Abbey Predator Ultra GAS. The perfect gas for any gas weapon from pistols to high tech sniper rifles. This is perfect for any Airsoft Skirmisher who runs a gas gun, and wants to keep a bottle of gas on them at all times during a Skirmish.