Dating a yugo sks
Most of this information is/was gathered from various forums and from my own observations.
I do not guarantee that this is 100% accurate because as we all know, ANYTHING IS POSSIBLE WITH THE SKS.
Yugoslavian SKS carbines do not bear a factory name or manufacturer's identification marking, but all were produced at Zastava.
The primary difference between an M59 and the later-produced M59/66 is the lack of a grenade launcher spigot and an outward resemblance to the Soviet-produced SKS.
Besides practice, these items are excellent investments in assisting the true rifleman in delivering accurate, consistent fire down range.
I will try to explain the dating system for the SKS rifle.
Almost as soon as the SKS was brought into service, it was made obsolete for Soviet purposes by the new AK-47 by Kalashnikov.
Advantages over the SKS were the selective-fire option, a rifle that was lighter, had more magazine capacity, not to mention that it was less labor-intensive to manufacture.
The SKS was to designed and produced as a service firearm that would have a limited lifespan between 2 rifles but utilized a reliable operating mechanism design.
This rifle was a less radical "just in case" for the AK-47's experimental design.
Some Albanian guns have no year reference numbers on them.