The grip alterations are complete. The magazine modification is complete. Now for the window.
Rough cutting a 7/16" piece of .060" polycarbonate; milling it down to 3/8"; and pressing it in place.
The finished gonzo grip counter on my artillery Luger. Greg Cote advertises this Mec-Gar magazine will hold eight rounds, but I think seven is more realistic.
I'll wait for Ithacadave to weigh in on what kind of glue/adhesive to use to hold the polycarbonate window in place. I don't want the adhesive to 'spread' or discolor the window, and since I have no experience with this material, I'll wait for more a experienced member to advise me.
Thank you all for your enthusiastic attention!