SKS  / 4 mm system

930103x00 / 930103x01 /930103x02 /930103x03 / 930103x04 / 930103x05 / 930103x06

930099100/ 930099101 / 930099102 / 930099103 / 930099104 / 930099105 /930099106

1 = Nickel/nickel

7 = Gold /gold