Names：

Guncannon II

（RX-77-4）
Status： MS of E.F.F
Tags： Mobile Suit
Development： Guncannon Heavy Arms Type
Original Design： Warrior Cannon II
World： the World of Mobile Soldiers
Works： MSV Mobile Suit Variation SeriesUniversal Century Series
LeveL： B

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.

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.