Kuro Kabuto, One Piece Wiki

Kuro Kabuto is a smaller, black version of the original Kabuto. It was developed by Usopp during the two-year timeskip. It is first clearly seen and named when Usopp fights against the guards of Ryugu Palace. Besides being more easily portable compared to the previous Kabuto (just slightly larger than his old slingshot, the Ginga Pachinko, in its default state), it retains the same design and functions, at least in its standard form. He uses it primarily in conjunction with his Pop Greens and ot

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