Don's reply has excellent info and gives a lot of things to look at. I would add on the double tap, sometimes people file down the sear protrusion on the firing pin or make other adjustments to the trigger/transfer lever/sideplate/sear bar spring/sear bar in an attempt to perform a 'trigger job" and decrease trigger pull. I suggest carefully inspect all those components, it is most helpful to have a separate properly operating pistol as a reference.
|