I would love to have a FX Impact M3 if only for the bottle adapter. However, there are a couple of guys who make a setup for the Avenger now and it is cheaper altogether than a M3.Nope, extra $220 or so at least, and not regulated....everyone of my friends that have shot the avenger say wow, I thought it would cost more ...it will never be confused with brocock, FX, (add any other high end name here) ...but they are shooters.