The 4-17 Heavy Slug is a Large Tank like vehicle used by The Grand Star Army.
The Heavy Slug resembles a Sphere, with four long treads from it, two sticking front, and two behind. The Sphere is mounted with a Cannon that can move 360 degrees around.
The Heavy Slug is rather fast for a tank, as it can move at about 300mph. the Cannon can move 360 degrees around. It fires Heavy-Shock Bombs, a Bomb that after being activated, explodes in a twenty five meter radius sphere of Concentrated Energy.