I've spent time amongst the Pathan and Mujahideen in the tribal regions of the
North West Frontier of Pakistan, close to Afghanistan, watching
them make weapons in the world's largest arm's bazaar. They could
make facsimiles of anything - AK 47's, M16's, Glocks, .303's, anti-aircraft
guns and the ammunition to go with them.
Two-thirds of the world's supply of heroin passed through the same
bazaar.
It was fascinating to watch artisans make these weapons in such rustic
settings. Weapons were then tested by firing them outside the workshop
in the streets.
Suffice to say it was a dangerous place.
Tribal law prevailed and these same parts of the country are where the madrassas would form that were the origins of the Taliban.
Video here :-
https://youtu.be/w4895bG4hNk