JR, A Gen4 G23 Frame mated with a Gen3 G38 Slide = paperweight or can I effectively get a Gen4 G38 out of it with proper parts exchange? (I guess this question could apply across the board for Gen4 frames used with Gen3 slides) Depending on your answer I would either buy a Gen3 for its slide OR more likely just buy a whole new top end. It appears from your previous posts that I will also have to have to replace the ejector with a short/bent for the GAP round. Of course I will pick up the correct magazines too. Thanks in advance JR. Drew.