Thank you for your interest in our trigger. This isn't a normal problem but to further get to the crux of the problem, I would check the spring loaded magazine plunger, the magazine, and the receiver pin hole placements in both the receiver and trigger unit to see if the trigger unit is forced too far forward. If the problem is in the trigger or plunger isn't holding properly then I would expect that a new trigger unit will fix it. If you need more assistance please give us a call at 830-557-5433. Good shooting! KIDD