Thanks Dr. Rob
A few more rounds through my altered 10 rd. Browning, to be sure and I'll be looking for a couple of hi-cap BDM's. Unless of course I can find OEM specimins.
I am not entirely certain of the model. I know it was made in DA/SA and DAO only, is generally referred to as a DA Hi Power, although it is not a true Hi Power. And, I suppose because Browning had the BDM was not marketed in the U.S.
There are a half dozen still on the major auction site. I'm impressed so far.