There is more information available on this subject at Shotgun on the English Wikipedia.

A shotgun, also known as a scattergun and peppergun, is a firearm that is usually designed to be fired from the shoulder, which uses the energy of a fixed shell to fire a number of small spherical pellets called shot, or a solid projectile called a slug.

Shotgun can refer to the following:

• DTM Series - A series of shotguns by Weapon System Technologies.
  • M90 Close Assault Weapon System - A type of shotgun featured in most of the Halo games.
  • DTM/Law Enforcement
• M45 Tactical Shotgun - A shotgun featured in Halo: Reach.
• Type-52 Pistol - A shotgun-like Jiralhanae weapon, also known as Mauler.
• Underslung Shotgun
• M45D Tactical Shotgun - A shotgun featured in Halo 4.
• Z-180 Close Combat Rifle/Asymmetric Engagement Mitigator - The Forerunner equivelent of a shotgun known as a Scattershot.
• Shotgun (Halo 4 Commendation) - A multiplayer commendation in Halo 4

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