KB4-R/5 (AK-4용 곡선날/5pcs) KB4-R/5 (AK-4용 곡선날/5pcs) KB4-R/5 (AK-4용 곡선날/5pcs) KB4-R/5 (AK-4용 곡선날/5pcs) KB4-R/5 (AK-4용 곡선날/5pcs) KB4-R/5 (AK-4용 곡선날/5pcs)