"Real" AKs are full auto. All the semi-autos are copies. The closest copy ever was the Steyr Maadi which were the rifles used in Red Dawn.
The Chinese AKs are probably the closest in having mil-spec parts and builds. Saigas are the newest entry in the arena are built at Izmash in Russia.
There...
In 42 and 43 the Russians were in a hurry to produce these as fast as possible. If you have a passing interest in such things, take a close look at the receiver. The metal shows machine marks and rough finish...a hallmark of rushed combat production. Prewar models feature nice smoothly finished...