Yesterday, I was able to stop into a MA shop that I rarely get to visit. He had mostly the usual stuff but then I spotted a gun he was apparently in the process of cleaning & lubing. It had a tag right near it: "S&W Model 1006 Performance Center"!

Well, that got my attention quick!
But the gun was field stripped down and practically soaked in oil or whatever on a rag... and it was a
black gun.

An all-black gun.

A black 1006 I thought to myself?

Could it be?
I asked and the dealer confirmed: Yes, it was a Model 1006.

He was in the process of selling a gun so that was all I got out of him. It's a one-man shop.
I eventually got a closer look at the frame and, sure enough, it said "Mod 1006" on it.
But it was all black (which looked factory, not refinished) with a slide that looked more like a fancy S&W 1911 slide than a 3rd Gen slide.

It had both front and rear
"fish-scale" style gripping surfaces.

What the heck???
After I got back home, I tried to look it up via Google, but I found nothing even close.
So what was I looking at? Was it an actual Performance Center version of a Model 1006? Or was it some refinished Frankengun put together by the dealer or someone else?
Help!!!