Colt SMG 635 9mm 10.5" AR uppers, two listed, started last night!

I thought I was going to do a couple "quick" listings before I shut things down for the day yeasterday. It ended up being an hour+ long dig into figuring out just what these two uppers were. I am shocked over and over again by what I end up with. Just when I think I can't be stumped.....something odd comes my way.

There are two of these Colt 9mm uppers listed. In the digging for info I found a tell-tell sign that these ARE SMG uppers because of the recessed area on the bottom of the chamber area. I didn't take the forearm off, but I'm certain the dates on the bbl will confirm that these are early 635 uppers.

These are from an estate we are dealing with that had SEVERAL machine guns.....I am not dealing with the class III items, just the semi auto items.

https://www.gunbroker.com/item/1043277391