The RGC-80 GM Cannon is a mass-produced Earth Federation support mobile suit from Mobile Suit Gundam, designed as a fire-support variant of the RGM-79 GM. Equipped with a pair of shoulder-mounted cannon barrels, it provides long-range artillery support and anti-ship firepower to Federation forces. It is not a named individual character, but a machine unit that appears as part of the Federation’s mobile suit lineup, representing the military’s effort to counter Zeon’s battlefield dominance with specialized, versatile units.