Battle Smasher, One Piece Wiki

The Battle Smasher is a prosthetic right arm belonging to Z. The Battle Smasher is a gigantic mechanical arm with three-pronged fingers, big enough to hold a full-grown person, a Gatling-gun design for the wrist and forearm on the outside portion, in which the inside is a giant cannon barrel, held together by large bolts at the wrist. The arm is connected to Z's right arm from his elbow, and an additional artificial upper forearm connected to his shoulder, and held together by two mast rigging a

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