...Try adjusting the left leg of your sear spring to add more tension...if that takes care of your problem then treat yourself to a new sear spring after 23 years. Also check the sear nose and hammer hooks for damage or wear. If the sear nose is damaged or short it could also allow it to fall. If the hammer hooks are worn and over 90 degrees it can fall. If there is no damage and the tensioning doesn't help check the disconnector. If the disconnector length is too short it won't clear the sear feet...
Anyway, you can start by checking these parts...worst possible case senario you treat yourself to a new Hammer,Sear, and Disconnector. If you have to do this just get a new light weight trigger and refit the safety, or get a new one, at the same time. No sense screwing around with old parts if they are worn. You won't regret upgrading.
If you can't do it yourself contact a reputable shop on the East coast.
Anyway, you can start by checking these parts...worst possible case senario you treat yourself to a new Hammer,Sear, and Disconnector. If you have to do this just get a new light weight trigger and refit the safety, or get a new one, at the same time. No sense screwing around with old parts if they are worn. You won't regret upgrading.
If you can't do it yourself contact a reputable shop on the East coast.