Whichever aspect is just not Functioning…attempt everything with stock OEM components. Sometimes aftermarket slides and triggers have far too restricted tolerances to operate in the P80. So far the Brownells and Gray Ghost (just a little limited) have worked in my builds. I’ve read ZEV slides could be too restricted. https://growthbookmarks.com/story18576427/glock-43-p80-things-to-know-before-you-buy