For sure you can adjust triggers down where they will slam fire. Been there and done that. Part of adjusting a trigger down is making sure you can't slam fire the thing. You don't need ammunition in the gun, just cock it and slam the bolt shut as hard as you can. If it stays cocked after a few tries, you and probably good to go. I've never had one give me any trouble after this test butTom is sure correct that it can be a dangerous game. Adjust a trigger so you have some extra safety margin.