...unless the body isn't drilled for a sear lug access hole. In that case, the allen head portion is on the bottom and catches the sear. The only way to adjust these is by removing the trigger frame, making a small adjustment, putting it back together to try it, and repeating as often as necessary. I have a pre-96 body that I drilled just to save the headaches.
Bleeding Paint and Sweating CO2 since 1988!