A series of semi-automatic rifles based on the RPK receiver are manufactured by the "Molot" factory in Vyatskiye Polyany,Russia.
Many military surplus Soviet SKS were converted into hunting weapons by the "Hammer" factory in Vyatskiye Polyany (Russian: Вятско-Полянский машиностроительный завод «Молот»); these were labeled OP (OP = охотничье-промысловый, "hunting and fishing").