If you're still looking around for this, you can now find it Airsoft GI... "The Madbull GSG-1 Distraction Device is the best distraction tool for MILSIM or CQB. The GSG-1 is a CO2 filled canister designed to release a loud 'POP' when the gas is expelled by the time released valve. The GSG-1 is capable of reaching 120db right at the cusp of the valve, which is the equivalent of standing on the runway when a plane is taking off! This is the best way to scare the life out of the opposition, or spook them just long enough to get an easy shot off.

Specifications:

• Manufacturer: Madbull
• Design: CO2 ONLY (Red/Green Gas will not work!)

Please Note:

• This is just a toy, Do Not throw it.
• Only operates with CO2, Airsoft GI highly recommends purchasing the Madbull CO2 adaptor with the GSG-1"