SKS receiver cover retaining pin fits all SKS rifles Yugoslavia SKS M59, Yugoslavia 66A1, Russian SKS M45, Chinese SKS 56, Romanian SKS, Albanian SKS ect. Pin is made from steel and comes with the smaller retaining pin pin. If you lost or broke your old pin or just want to have a spare one around or complete a new SKS project rifle, then you need this new SKS rifle receiver cover pin which is an integral part that your SKS rifle and cannot function without.