don't have original trigger, not sure on issue, on 3 round burst or when trying to ramp it fires non stop till you hold the bolt back, then resets till next time, changed out battery, think solenoid is crap
theres a trick to stop this,something about wrapping the solanoid in insulation tape,something moves around from the force of the shot my team mate sorted mine out ill have to ask him what he actually did.