I just heard about these! I asked a buddy of mine about them and he confirmed that he can get them. I am going to get one. It's a limited run of 642's. If it's like the 37-2's that were out a few years ago, they won't last long.
I'll post some pics and a review when mine gets here.
His shop is near Austin, and for $433 plus shipping & tax, I don't see a downside.
“It is the belief that violence is an aberration that is dangerous because it lulls us into forgetting how easily violence may erupt in quiescent places.” S. Pinker