Whichever portion is not really Doing the job…check out all of it with stock OEM sections. At times aftermarket slides and triggers have much too limited tolerances to operate inside a P80. So far the Brownells and Grey Ghost (a bit restricted) have worked in my builds. I’ve read ZEV https://bookmarkvids.com/story19903148/the-best-side-of-glock-43-p80