These Body parts are made out of aluminum, making them the heaviest. When the Hyper Dragon is equipped with this component, it becomes a metal yo-yo for advanced players in the vein of the Silver Bullet 2 or the Cold Fusion.
With the Heavy Metal Body, one can expect a significant increase in weight, and by extension, much longer spinning, especially with the HD-05 Metal Bearing set.
It can be made even heavier with the addition of a Rearrange or Heavy Weight set. It also features a recessed starburst response system (also seen in the Henrys Coral Snake), which is quite rare for a metal yo-yo.