The shortest and most precise answer is NOT ENOUGH! if they had thought about how many of us in the 21st Century would want one, they would have made an order of magnitude more of them back then, but if they had, perverse beings that we are, we wouldn’t have one of those “common” things.

They were then and remain now a gun for the extreme enthususiast and as such they satisfied demand without making very large numbers at all. I was amazed to hear recently that many of the Model 16-4s sat around unsold for a long time when they were originally on the market. I thought they disappeared faster than a bag of munchies in a head shop.

Froggie