Whichever section is not really Performing…test all of it with stock OEM pieces. From time to time aftermarket slides and triggers have far too tight tolerances to operate in the P80. To date the Brownells and Gray Ghost (a bit tight) have worked in my builds. I’ve listened to ZEV https://networkbookmarks.com/story18642963/considerations-to-know-about-glock-43-p80