From Halopedia, the Halo wiki
- "The only thing I can think of that would make the MA5C any sweeter would be an under-slung shotty or a forty mike mike."
- —Anonymous UNSC Serviceman
The Underslung shotgun is a weapon used by the UNSC. Little is known about it, but it is a weapon attachment mentioned by a UNSC serviceman. It would most likely be used in close-range combat, such as house clearance or trench fighting.
 List of appearances
- Halo 3 (Mentioned only)