Whichever part is not Operating…try out all of it with stock OEM components. From time to time aftermarket slides and triggers have also restricted tolerances to operate in the P80. So far the Brownells and Grey Ghost (a little restricted) have worked in my builds. I’ve listened to ZEV slides https://cheapbookmarking.com/story18564721/helping-the-others-realize-the-advantages-of-glock-43-p80