there IS a reg in the automag. If you are getting 50 fps jumps in velocity you are most likely feeding the gun liquid co2, or the reg seat is toasty. You need an antishpon tube, but you don't need that regulator. co2, as it is, is bearly at a high enough pressure for adequate preformance on an automag. If you do anything, get someones old ACI expantion chamber and remove the cones from it.. along with the antisiphon tank. Again.. the antisiphon tank is the best thing you can do for your mag on co2. I'll say it again, do not use that regulator, and put the antisiphon tube in the tank. (am I hammering the point in enough?)
You'd have to be Crazy to be sane in this world. - Nero
Omnipotence ain't all it's cracked up to be.......