Technology & Combat Characteristics
A heavy reinforcement modification/package, exclusive to the RMS-106 Hizack. The equipment package offers changes such as the attachment of a larger backpack unit and a new armor composite. The backpack upgrade allows the G-Zack to have 150% more mobility compared to that of the original Hizack. The other aforementioned upgrade retrofits Gundarium as the G-Zack's main armor material, giving the G-Zack similar, if not the same, durability as the original RX-78-2 Gundam while also reducing its weight, making it much lighter than other mobile suits.
History
The G-Zack is used as the main mobile suit for both Shinsei AEUG and Super Zeon. Many G-Zacks under Super Zeon authority have a green color scheme.