from what it looks like, the foil I placed inside did it's job. I did not degrease inners so if there is I will take the razor blade and hope I can get it out. I got a little near where the bolt runs but I will be polishing every metal to metal contact area. I got a number of aluminum polish.



edit:
only place it get into on the inside was just at the ejection port. nothing on the rail for the slide. maybe alittle cleaning for the bolt that be it.