Submachine gun

A submachine gun, abbreviated SMG, is a magazine-fed, automatic carbine designed to fire handgun cartridges. The term "submachine gun" was coined by John T. Thompson, the inventor of the Thompson submachine gun, to describe its design concept as an automatic firearm with notably less firepower than a machine gun. As a machine gun must fire rifle cartridges to be classified as such, submachine guns are not considered machine guns.

Submachine gun may refer to the following:

UNSC

 * M7 SMG
 * M20 SMG

Covenant

 * Type-25 plasma gun
 * Type-25 Brute plasma gun
 * Type-25 Spiker

Forerunner

 * Z-130 Suppressor