Behind the scenes
The LEGO version of the AT-HS was based on a piece of concept art for The Last Jedi which, although canon, was ultimately not used in the final cut of the film.
- Star Wars: Episode VIII The Last Jedi (Set: 75177 First Order Heavy Scout Walker) (First mentioned)
- Star Wars: The Last Jedi: The Visual Dictionary (First identified as All Terrain Heavy Scout)
- The Art of Star Wars: The Last Jedi