The same as any other machine. Raw materials are purchased and made to specifications.
AK47s and tanks.
The receiver and receiver cover are typically made of stamped steel (Though older/higher quality AKs are made of milled steel), with solid steel barrels. In under-folding AK47s the stocks are also made of stamped steel. In standard AK47s the stock and hand guard are made of wood. In more modern AK47s the pistols grips are made of plastic, while in classic AKs they were typically wood. Current-day AKs (The AK74 series) use the same barrel and receiver materials, with plastic stocks, handguards, and pistol grip.
AK47s
9000<
With bulletproof vests and AK47s.
Depends if you buy an aeg or not. Although I don't believe they even manufacture spring AK47s. There is no set AK47 brand. there is at least one thousand different AK47s.
AK47s
Literally, millions. There were made by Russia, China, and many of the Soviet allies. While more AK47s have been made, there are a LOT of SKS rifles out there. No exact number are available.
No. You must follow all BATFE rules.
single stacked just look it up its true
If by flip you mean tumble in the air then it depends on the type of AK that is being fired. If the AK is cheaply made and has a low quality barrel then the bullet may tumble in the air. Quality AK47s do not have this problem.
Their equipment supplies the answer; Soviet/Red Chinese tanks, jets, artillery, AK47s, etc.