I help out at a friend's gun shop and he got it in on trade a month or two ago. I was drooling over it since it came in. It wasn't selling and then the final straw was he came back from a show and in the process of helping him unpack I opened the multi-gun case it was in and there it was, its muzzle down inside a DPMS stripped lower that it was sharing the case with. :? I decided to buy it before it got scratched up. That and neither I nor my friend had seen one before nor have we since and factory mags for it are $10 at CDNN.
He sold it to me at cost plus tax, which ended up being $212.
The guy who traded it in buy lots of guns, then sells them, then buys more. I am not sure he ever fired it, or if he did he didn't put many rounds through it. I am not sure when he bought it originally. He didn't trade it with a case or manual.
Its still at the shop in the safe. I am eager to shoot it.