· Abbey Predator Gun Gas 144a is a medium-power gas for use in marker Airsoft lightweight structure, mostly plastic. Contains excellent lubricant high UPL performance specially designed to moisturize and lubricate joints and internal parts of the gun, ensuring smooth operation at all times. · Abbey Predator Gun Gas 144a can be used for indoor locations where required lower speeds. Should be used in warmer climates where the risk of damage can occur if more powerful gases are used. · Use Abbey Predator Gun Gas 144a where manufacturers recommend gas 134a. · It has the same power as the gas 134a and will not damage your Airsoft marker.