The most common method you can use to adjust a 1911 trigger is to use a hammer and punch.
Remove the grips from the gun and then use a hammer to gently tap out the pins that hold the trigger in place. Once the pins are removed, you can use a punch to push down on the spring that holds the trigger in place. This will allow you to move or adjust the trigger as needed. Be sure to check your work after adjusting the trigger and re-install the pins before putting the grips back on.
Andy Larsson Answered question September 6, 2022