I think you'll find that this is not a Python clone, but more like a Diamondback clone. I believe it's built on a fame very similar to Colt's D frame (Detective Special, Cobra, Police Positive, Diamondback), rather than their I frame (Python, Official Police, etc.). I've seen one or two of them through the years, but only in .38, never in .22 (till now). Wish I could afford it--it looks like a cool little gun and a fun shooter.
And Armscorp is, I believe, still making a version of this gun, though I don't think they have a 4" vent rib barrel in the line right now.