SMG

SMG may refer to the following:
*M7/Caseless Submachine Gun - The SMG in Halo 2, Halo 2: Anniversary, Halo 3, Halo Wars, Halo: Spartan Assault and Halo: Spartan Strike.
*M7S Caseless Submachine Gun - The Suppressed SMG in Halo 2 Vistas Example map, Halo 2: Anniversarys multiplayer and Halo 3: ODST.
*M20/Personal Defense Weapon - The SMG in Halo 5: Guardians.