[COLOR=#0000cc][/COLOR]We know the grip and the shoulder sling came from Kaiser camera accessories. My question to all of you, where did the upper half come from? are they parts put together? was the upper half custom made?
Also,
the barrel seems to gets thinner towards the point, why would anyone go to the trouble of filing down the barrel then adding a target sight. I could be wrong but most if not all of the parts of these weapons, Fetts and others come from other existing items...

any help here would be appreciated
P.S. I just found a Kaiser grip and shoulder sling at a local flee market...I just about died when I saw it, I even passed it up tried not to look interested...