Same as the QB79, just made in a different factory. Haven't noticed much difference in fit or finish between the two 79 versions, so what it written about one is true about the other. Will run on 88gr. cartrdiges with the use of an adaptor...will run on thin (90z.) paintball tanks without an adaptor. Can usually pick up an adaptor from K-Mart or large natonal-chain sporting goods store for $5 to $7.
BTW: Take off the caps. if you can, usually considered yelling.