All Terrain MegaCaliber Six

The All Terrain MegaCaliber Six (AT-M6), also known as the First Order Heavy Assault Walker, was a mobile heavy artillery walker used by the First Order during their conflict with the Resistance. Much larger than the All Terrain Armored Transport used by the Galactic Empire, the walker featured a megacaliber six cannon mounted to its back, for which it was named.

Appearances

 * Star Wars: Episode VIII The Last Jedi