theres like a magazine, that pops out of the Normal L96 mag area, with has a tubelike hole. You drop the smaller 8 oz c02 canisters into. (there for Creamers dispensers at restraunts) then you screw in a plug into the back side of the mag thing, Behind the c02 canister. then you just pop it back in the gun. Best explenation i can give, Reminds me of a c02 powered bb gun sort of.
Its actually a pretty cool design, doesnt look like anything i'v seen before.