Why does your paintball gun fire uncontrollably?

Answer 1

Your marker could be leaking from a small pinhole in your frame, or it could be leaking out of the CO2 adapter itself. you may want to have it checked, if it is a electric marker, you could freeze your circuit board.

Answer 2

There is likely a problem with your sear, if it is mechanical, or with your board if it is electrical. You should immediately take the gun to a tech, as you wont be able to play of a field with a runnaway gun.