HFC134a is safe for use in all airsoft gas powered guns with pressure level low enough for increased durability of the gun. Silicone based gas keeps things lubricated. One canister powers approximately 2000 rounds. Gas is shipped via surface mail only due to airline regulations prohibiting the carrying of compressed air on-board. 400g net weight.
NOTE : Gas is shipped separately by surface mail than the rest of your order. Airlines prohibit shipping of gas and therefore we are forced to ship by surface mail. No tracking number is provided for surface mail shipped gas. You should expect shipping time to take between 8 - 10 weeks.
Note that gas is shipped to you via surface mail since express mail regulations prohibit shipping gas by air. Surface mail will take 8-10 weeks. Cost of surface mail shipping is automatically accounted for when you check out this item. If you select express mail, we will still only be able to ship this via surface mail.