GAT-X303AA Rosso Aegis Gundam — Specifications, Lineage & Appearances
GAT-X303AA
GAT-X303AA Rosso Aegis Gundam at a glance
- Timeline
- Cosmic Era
- First appearance
- Mobile Suit Gundam SEED C.E. 73 Δ Astray (2006)
- Developed from
- GAT-X303 Aegis Gundam
- Gunpla kits
- None catalogued yet — know one? suggest it
Interactive development tree and full data sheet: www.mobilesuit.dev/mobile-suit/gat-x303aa-rosso-aegis-gundam

The GAT-X303AA Rosso Aegis Gundam is a prototype transformable assault mobile suit from the Cosmic Era timeline of the Gundam franchise. It was manufactured by Actaeon Industries. Within the franchise it is considered canon.
The GAT-X303AA Rosso Aegis is a transformable mobile suit introduced in the manga Mobile Suit Gundam SEED C.E. 73 Δ ASTRAY. It is piloted by Emilio Bloderick.
Within the story, the GAT-X303AA Rosso Aegis Gundam first appears in 73 C.E.
The GAT-X303AA Rosso Aegis Gundam was developed from GAT-X303 Aegis Gundam. Both directions are mapped on the interactive tree above.
The GAT-X303AA Rosso Aegis Gundam has appeared in 1 Gundam release, debuting in Mobile Suit Gundam SEED C.E. 73 Δ Astray (2006).
It was fielded by Earth Alliance, OMNI Enforcer and Phantom Pain.
Specifications
- Model number
- GAT-X303AA
- Classification
- Prototype Transformable Assault Mobile Suit
- Production type
- Prototype
- Weapon class
- Gundam
- Manufacturer
- Actaeon Industries
- Universe
- Cosmic Era
- Canon status
- canon
- Power source
- Ultracompact Energy Battery
- Armor
- Variable Phase Shift armor
- First seen
- 73 C.E.
Special Equipment & Features
- Magnetic Field Generator
Production Timeline
The GAT-X303AA Rosso Aegis Gundam has appeared in 1 release in 2006.
- 2006 — Mobile Suit Gundam SEED C.E. 73 Δ Astray (debut)
Development Lineage
Developed from
Frequently asked questions about the GAT-X303AA Rosso Aegis Gundam
- What is the GAT-X303AA Rosso Aegis Gundam?
- The GAT-X303AA Rosso Aegis Gundam is a prototype transformable assault mobile suit from the Cosmic Era timeline of the Gundam franchise. It was manufactured by Actaeon Industries. It is considered canon within the franchise. During the First Alliance-PLANT War, the Earth Alliance collaborated with Orb Union's Morgenröte in creating their own series of mobile suits.
- What was the GAT-X303AA Rosso Aegis Gundam developed from?
- The GAT-X303AA Rosso Aegis Gundam was developed from GAT-X303 Aegis Gundam. Its full development lineage is mapped on the GAT-X303AA Rosso Aegis Gundam evolution tree.
- Which factions operated the GAT-X303AA Rosso Aegis Gundam?
- The GAT-X303AA Rosso Aegis Gundam was operated by Earth Alliance, OMNI Enforcer and Phantom Pain.
- How big is the GAT-X303AA Rosso Aegis Gundam?
- The GAT-X303AA Rosso Aegis Gundam is armoured in Variable Phase Shift armor.
- Which Gundam series does the GAT-X303AA Rosso Aegis Gundam appear in?
- The GAT-X303AA Rosso Aegis Gundam appears in 1 Gundam release, debuting in Mobile Suit Gundam SEED C.E. 73 Δ Astray (2006): Mobile Suit Gundam SEED C.E. 73 Δ Astray.
Explore the full interactive development tree for the GAT-X303AA Rosso Aegis Gundam above, or browse every Gundam mobile suit. Reference: Gundam Wiki.