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- The secret organization, Weapons badge.
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Weapons Bone Badge is a badge item.
7 Weapons Bone Badges are used to trade for a Panzer's Tail mag.
Item sources
Quest reward
2 Weapons Bone Badges are available in boxes at the end of Mop-up Operation 2 and Endless Nightmare 2 on Very Hard or Ultimate, with an extra 2 in select locations in Mop-up Operation 2 only.