WHAT DOES MILITARY SURPLUS GUNS FOR SALE MEAN?

The Russkis made a slightly greater bullet (9x18mm Makarov) for it and after that advised every one of the satellite states to create a gun like it, that is how you have the FEG PA-63, CZ eighty two and PA64 military surplus pistols.Initially created during the Soviet Union and later on created by many other nations, the SKS is chambered in 7.62x39