The PF-78-3A Gundam Amazing Red Warrior is a Gunpla from the anime series Gundam Build Fighters Try. It is a variant of the PF-78-3 Perfect Gundam III.

Built by Meijin Kawaguchi for his own use, the Gundam Amazing Red Warrior is a customized version of the PF-78-3 Perfect Gundam III "Red Warrior" that appears in the manga Plamo-Kyoshiro. This Gunpla is also the Meijin's way of honoring Takeshi Iori, who had used the Perfect Gundam. The Gundam Amazing Red Warrior can exhibit overwhelming speed during battle due to its greatly improved thrust, and has high maneuverability thanks to the flexibly mounted vernier units above the shoulder armors. The weapon mounted on the left side of the backpack can be changed to meet the needs of different battle, and this allows the suit to be highly adaptable. The combination of the Gunpla's high degree of completion and the Meijin's excellent piloting skills caused the Gundam Amazing Red Warrior to be a formidable foe for any opponent.