If you mount that scope on a .44 and it holds up, then I would be greatly surprised.
These scopes, as you correctly stated, are no longer made. As such, it would be a waste for your to "invest" (or rather WASTE) $50 on it.
If money is a significant issue (and I think it is given that you only want to spend $50) save your money and try and get a used Leupold, Bushnell Elite, Nikon, or Burris handgun scope.
Zachary