KB4-S/5 (AK-4용 칼날/5pcs) KB4-S/5 (AK-4용 칼날/5pcs) KB4-S/5 (AK-4용 칼날/5pcs) KB4-S/5 (AK-4용 칼날/5pcs) KB4-S/5 (AK-4용 칼날/5pcs) KB4-S/5 (AK-4용 칼날/5pcs)