gm cannon

A fictional mecha from the Gundam series. It appears in Zeta Gundam.

RGC-80 GM Cannon
A fire support variant of the GM mobile suit equipped with a powerful 240mm cannon on its right shoulder. Even though it was a different machine in its appearance, it shared 60% of its parts with the general-purpose GM, and could load all of the versatile platform's weapons. Evolved into the GM Cannon II.

Some units were seen deployed by the Titans at their secret Jaburo base in U.C. 0087.