Technology & Combat Characteristics
Near the end of the One Year War, the Earth Federation Forces used the RX-77-3 Guncannon Heavy Custom as a base to develop a new Guncannon-type unit, the RX-77-4 Guncannon II. The Guncannon II also incorporated data from other prototype machines and became the final model in the RX-77 series. Unlike its base machine, the Guncannon II has a beam cannon on its right shoulder to resolve the balance and recoil issues related to using projectile cannons. The use of a beam cannon over two projectile cannons is also meant to help enhance the suit's firepower and ease of production.
The beam cannon is operated alongside a multipurpose precision targeting system on the left shoulder for improved firing accuracy. The switch to a beam cannon also saved up space on the back meant for storing physical ammunitions, as well as vents for expelling the projectile cannons' exhaust gas. A new propulsion system with large thrusters is installed in this saved space, and coupled with the Guncannon II's reduced weight, the suit not only has improved thrust power in space but could also carry out short distance jumps while under gravity. This is a surprising level of mobility for a heavy mobile suit.
- Vulcan Gun
- A pair of shell-firing armament built into the head. Low offensive power, only used to restrict enemy movement, and lay down a wall of suppressive fire due to their rapid fire capability.
- Beam Cannon
- Mounted on the right shoulder, it is powered by the suit's generator and capable of continuous fire. Used for mid-long range attacks.
- XBR-M-79a Beam Rifle
- The Guncannon II can be equipped with the same beam rifle as used by the RX-77-2 Guncannon. This particular beam rifle is specialized for sniping. Compared to the beam rifle used by the RX-78-2 Gundam, it was harder to use but had higher accuracy and longer range. It is said to have a range of around 30km.
- YHI YF-MG100 100mm Machine Gun
- The standard armament for Federation's mobile suit ground forces during the One Year War that was developed by Yashima Heavy Industries. It has an alternate model number: "NF·GMG-Type.37/100mm". Equipped with a box magazine and folding stock, it has excellent rate of fire and is easy to wield. It utilized a smoothbore type barrel that lacked rifling and has to be replaced after firing 3000 rounds. The weapon could utilize three different types of ammunitions: HEAT (High Explosive Anti Tank), APFSDS (Armor-Piercing Fin-Stabilized Discarding-Sabot), and HESH (High Explosive Squash Head), allowing combat units to select the appropriate type to meet operational needs.
- "Fire Nut" Grenade
- An unknown number of "Fire Nut" grenades are stored in a rack on the Guncannon II's left side armor. Thrown like regular grenades when used, it engulfs the target in flames upon impact.
Special Equipment & Features
- Multipurpose Precision Targeting System
- Mounted on the left shoulder, this system grants the Guncannon II better firing accuracy during long range bombardments.
Eight RX-77-4 Guncannon II units were built at the recaptured California Base in North America and several Guncannon IIs participated in the Earth Federation Force's North American offensive.
Notes and Trivia
FA-78-2 Heavy Gundam | RGM-79L GM Light Armor | RX-77-3 Guncannon Heavy Arms Type | RX-77-4 Guncannon II | RX-78-3 Gundam "G-3" | TGM-79 GM Trainer
|Aircraft / Spacecraft|
Corvette Booster | Guncarry | Lightliner
|Principality of Zeon|
MS-06R-2 Zaku II High Mobility Type | MS-10 Pezun Dowadge | MS-11 Act Zaku | MS-12 Gigan | MS-13 Gasshia | MS-17 Galbaldy α
|Aircraft / Spacecraft|