Larryk19D
Member
Decided to upgrade the trigger parts on my SA Mil-Spec. Replaced the trigger, sear, disconnect, hammer and strut with Wilson Combat Bulletproof parts. Swapped out the mainspring housing and grip safety from my SA Champion because it had the cut to fit the bobbed hammer. My original thumb safety was a little harder to get back in. Once reassembled it functioned almost perfectly. Big trigger pull improvement. Problem: can't engage the thumb safety. Obviously a little filing is in order. Does anyone know if any YouTube videos or schematics that show what I need to do. Any advice appreciated, Thanks, Larry