Originally Posted By: Widow maker 223You take the grip screw out get a 1/4 20 tap and make sure the hole is tapped all the way thru. The grip screw hole comes in under the trigger. Next get a 1/420 set screw a 1/4" long put some loc tite on it run it all the way in until it just touches the bottom of the trigger. It takes some fine tuning to take out the pre travel. When you are done cut a 1/4" off the grip screw and put it back together.
Pretty sure grip screw is 1/4-28 tpi.
Pretty sure grip screw is 1/4-28 tpi.