I came into a 1919a4 kit recently. Haven't gotten around to starting the build yet. Wanted to get some information first. Would it be possible to keep the parts in their original form and just swap out the FA trigger for a SA trigger but leave the original sear? Theoretically it should function as a semi only considering the trigger itself no longer has the sloped mating surface with which to pull the sear back down after firing once and cycling. Should just pull the spring loaded trigger bar forward. Just wanted to see if anyone has tried this before I go putting stuff together.