Brent, Yes it is separate from the rifle. I pulled my Borchardt out of the safe that has the ears on the tang and it looks the same length as this one. I think what has been done with this one is that it once had the ears on the tang and somebody ground them off and then welded up the hole that is there for the staff spring. If you enlarge the picture, you can see where the weld has pin holes created when it gassed off some impurities in the metal.
Steve, I have seen some target models with a neat small base for the shorter tang that was drilled and tapped. I have also seen that same base on some Zischang rifles. Whether Zischang
did them that way at the factory or later, I do not know.
