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The MS-04 Prototype Zaku is a mobile suit built by the Principality of Zeon several years before the One Year War. The mobile suit itself only appeared as part of the MS Collection.

Technology & Combat Characteristics

Due to the poor mobility of the MS-03 Prototype Zaku, the design was revised leading to the development of the MS-04. It featured twice the speed of the MS-03 and adopted the revolutionary Minovsky type fusion reactor. The Prototype Zaku has no weapons installed on it but can optionally use a 100mm machine gun, however, it was deemed inadequate for anti-ship combat. Plans for the Zaku Bazooka were soon drawn up.


  • 100mm Machine Gun
A shell firing gun that does not require energy to be used, however its effectiveness against heavy armor is very little.


Following the introduction of the MS-03 Prototype Zaku, Zeonic Company created an advanced version of this suit which would result in the creation of the MS-04. Unlike the MS-03, the MS-04 was equipped with a Minovsky type fusion reactor and stronger armor than its predecessor. Because of poor cost efficiency, development eventually led to the creation of the simplified MS-05B Zaku I.


Picture Gallery


External links

M-MSV Mechanics
Earth Federation/Titans
Mobile Weapon
Gundam's variations
FA-78-3 Full Armor 7th Gundam | HFA-78-3 Heavy Full Armor 7th Gundam | RX-78-4 Gundam Unit 4 "G04" | RX-78-5 Gundam Unit 5 "G05" | RX-78-6 Mudrock Gundam | RX-78-7 7th Gundam
Psyco Gundam's variations
MRX-007 Prototype Psyco Gundam | MRX-011 Mass Production Type Psyco Gundam
GM's variations
RAG-79 Aqua GM | RAG-79-G1 Waterproof Gundam | RGM-79F Desert GM | RGM-79F Land Combat Type GM
Guncannon's variation
RX-77-1A Guncannon A
ν Gundam 's variation
RX-94 Mass Production Type ν Gundam
RX-81LA G-Line Light Armor | RX-81ST G-Line Standard Armor
Principality of Zeon
Mobile Weapon
Zaku II High Mobility Type's variation
MS-06R-3S High Mobility Type Zaku
Gogg's variation
MSM-03-1 Prototype Gogg
Bigro's variation
MA-05 Bigro Kai
MSM-02 Hydro Test Type | MS-04 Prototype Zaku
Mobile Weapon
Gundam Mk-III's variation
FA-007GIII Full Armor Gundam Mk-III
Hyaku Shiki Kai's variations
FA-00100S Full Armor Hyaku Shiki Kai | MSK-100S Land Combat Hyaku Shiki Kai
ZZ Gundam's variations
MSZ-009 Prototype ZZ Gundam | MSZ-009B Prototype ZZ Gundam B Type | MSZ-013 Mass Production Type ZZ Gundam
Rick Dias's variation
RX-098 Prototype Rick Dias
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