Picked up this fullsize Witness .45 with the wonder finish recently from a good Ingo friend and decided to convert it to single action only. All that is needed is a SAO trigger and removal of the disconnector. I decided to reshape the factory curved trigger and install pre-travel and over-travel screws. A new trigger is $80 on up with several variations available. I wanted to be different, but also figured if I screwed it up, I'd just order a trigger.
Step one, remove factory disconnector. Drive out the roll pin holding the hammer in the frame and then drive out the roll pin holding the disco to the hammer. I took an after pic, but you get the idea.
Step two, install pre-travel set screw into factory trigger and then verify correct SAO operation before continuing. I actually verified operation before this step as well, but there's about 2 miles of pre-travel with no adjustment screw.
Step three. Now the fun begins. Heat and reshape the trigger shoe. Propane torch, vise and small ball peen hammer. Then trim off the end a little bit so it fits back inside the trigger guard.
Step four, install over-travel screw. This screw is pretty damn long, but functional.
Step five. Clean up the trigger assy to hide the marks from the 5lb sledge (joking). Prep for and apply cold bluing (I used the Brownells stuff, Oxpho Blue).
Reinstalled after bluing. Applied red loctite to the screws and adjusted them.
Function checked and got the trigger pull gauge out. 5 pull average was 3.5oz lower than before, could be contributed to some very light polishing I did or just the way the gauge was on the trigger versus before. Feels like a new gun and ready for a range trip!
Step one, remove factory disconnector. Drive out the roll pin holding the hammer in the frame and then drive out the roll pin holding the disco to the hammer. I took an after pic, but you get the idea.
Step two, install pre-travel set screw into factory trigger and then verify correct SAO operation before continuing. I actually verified operation before this step as well, but there's about 2 miles of pre-travel with no adjustment screw.
Step three. Now the fun begins. Heat and reshape the trigger shoe. Propane torch, vise and small ball peen hammer. Then trim off the end a little bit so it fits back inside the trigger guard.
Step four, install over-travel screw. This screw is pretty damn long, but functional.
Step five. Clean up the trigger assy to hide the marks from the 5lb sledge (joking). Prep for and apply cold bluing (I used the Brownells stuff, Oxpho Blue).
Reinstalled after bluing. Applied red loctite to the screws and adjusted them.
Function checked and got the trigger pull gauge out. 5 pull average was 3.5oz lower than before, could be contributed to some very light polishing I did or just the way the gauge was on the trigger versus before. Feels like a new gun and ready for a range trip!