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https://ast-gun.airsofttaiwan.com/index.php?route=product/product&search=Ghk%20ra%20bolt&product_id=3275

둘중에 뭐가 스틸임? 하나가 알루인데 나머진 재질 언급 없고....
글고 알루라고 써잇는게 더비쌈 ㅠ