AKM, AKMS, VPO-209, VPO-208, Vadim Spiridonov : Avtomat Kalashnikova Modernizirovanniy also known as AKM, AKMS (folding stock), AKMN (side optic rail), AKMNB(side rail, silencer pbs1), AKMSN(folding stock and side rail), AKMSP(folding stock, side rail, si