Although CO2 as the actual propellant in paintball sports has long since become obsolete, you can actually still find two CO2 items in my shop.
The reason for this is that these CO2 capsules are popular for paintball, airsoft, but also home defense markers and Pistols are used.
So does this 88 gram disposable CO2 capsule which is suitable for the HDX68 / PS-320 paintball marker with 40 joules.
Why do we need such a large, screw-on capsule for this cannon?
Explained very simply - because the energy of 40 joules means that smaller capsules would already "deflagrate" after just a few shots and the 88 gram variant would shoot each other more often leaves.
Your marker can be sharpened in no time with the small 12 gram capsules, mostly with a quick change device, but this 88 gram cartridge can be screwed on - to date there is no "quick piercing" version of it
The capsules are available in different order sizes - it's worth stocking up a bit more, as long as you have your HDX68 / PS-320 you will always need a propellant.... an unpressurized cannon is cooked nothing ;-)