Roger that. I have exchanged a few emails with Cheryl. She is the one who clarified that I have a MB 85B
(based on the barrel stamp of "M149".
I was hoping the forum might be a better place to open up the dialog (don't want to burden Cheryl with too
many questions until I do a little more homework).
This gun in particular appears to be be a hybrid/Frankenstein/basket-case.