I thought that front sight looked unusual. It's funny that the AFPG stamp isn't as crisp as the numbers stamped on the slide and barrel. I would've bet that those two serial number stamps were done at the factory as they are perfectly struck. The stippling on the front strap is very well done. I would assume that was also done by the AF armorer.
This is all good information and exactly what I was looking for.
It will be interesting to see what the factory letter indicates when it arrives.
Thanks

WB