Art, you posted:
"Kalashnikov worked at simplicity and reliability. Period. Stoner worked at a design which could, basically, not be produced in Russia's plants. Too precise tolerances, for instance; beyond Russia's ability for BOTH quality and quantity. The "looseness" inside the AK was deliberate."
Agree that Kalashnikov did work at simplicity and reliability and that "looseness" inside the AK was deliberate. BTW, it was not just loose fit of moving parts.
Everybody who owns AK knows that AK receiver is actually
EMPTY, there is a lot of room inside receiver for any kind of junk that can get inside the gun... mud, sand, snow or whatever can be pushed by moving parts out of the way,
deposited in "non-active" areas of receiver or just thrown out of the gun through numerous holes... This is
a great design feature, because it's in fact possible to pack the receiver with mud nearly up to the ears and AK will still work fine. Besides all, so called safety factor
used in AK design was probably close to 7-8, if not more, look at the "husky" fire-control group parts, receiver itself, bolt/carrier and other stuff. This makes AK mechanically very strong.
Now, I have no idea was Stoner wanted to design - something
that can not be duplicated or what. I question that as a main idea of his design, because defence industry in the USSR could surely duplicate such gizmo as M-16. I worked there 10 years and we had lots of first-class equipment (imported from the West) and very skilled labor. I think
M-16 is an interesting design but it's a poor combat weapon, easily breakable and not suited for use in
dirty conditions. It's O.K. for non-heavy duty applications. The only real war it has been used in (Vietnam), didn't prove it to be a stellar performer. There are lots of very good American-made firearms, but M-16 is not one of them.