This kit comes with a Valken brand 90 gram Co2 which is the same size as other brands in 88 gram. Also included is an adapter for converting to standard HPA threads and an On/Off Valve so the Co2 can be turned off when not in use.
Please consult your User manual to be sure your launcher is compatible with Co2. Not all launchers will work with Co2 and misuse will cause damage to your launcher. Use at your own risk