GBB Uzi, brilliant, i would be interested to know how long a mag of gas lasts especially on full auto. I have one of the co2 mini uzi's and on full auto the co2 only last 3/4 of a mag, which is crap. The Uzi itself is great both in recoil and power one of the reasons the co2 does not last. so be interesting to know on this one.