Just curious if anyone knew. They have a facility in a suburb of Minneapolis and one in greater Minnesota but I can't really see what the heck it is from my google-fu. They both look pretty small but then they list Fridley (Mpls suburb) as their headquarters. What goes on in that little place? They don't really build Desert Eagles in the Twin Cities do they?

Never though about it or ever looked into it, but you made me curious. I looked it up on google maps and yea it does looks small.
My guess it is just a headquarters/administration type office and the manufacturing is somewhere else that is not publicly listed. I know for a long time they were made in Israel, so the only thing they really needed was a headquarters/office building over here and either a warehouse to hold stock, or maybe they went straight from Israel to the distributors? I have no clue, just guessing here.
When they moved production to the US, I'm guessing they just kept the manufacturing facility unlisted, or maybe they were made in a facility that also made other guns? No clue.

I now am now curious where they make them. Maybe MrBlackCat will have some insight, he seems to be the most knowledgeable on the DE's here.

Magnum Research tour

Watch the video, its full of info.

They sure as fuck don't produce .50 ae  magazines

Nope. They are made by checkmate. They make and supply the mags for magnum research.
Now finding any in stock might be fun.

I searched for those also, not one in sight

edit:  there are many available now as of the past couple of months on various web sights (gunbroker, ebay, etc.)