I attach the tank to my UL SLG and turn on the air and it starts going full auto... Is this a bad bumper? Before it started doing this the balls were getting pinched in between the bolt and the neck.. Can anyone help?
Turn up the pressure. Screw the regulator screw counterclockwise a bit then air it up. If it still full autos, screw it out a little more. Repeat until it stops the crazy firing. This should also fix the ball pinching problem.