Halo Alpha
Halo Alpha

The M45 Tactical Shotgun, formally known as the Tactical Shotgun, 8 Gauge, Pump Action, M45, is a shotgun used by the United Nations Space Command Army.[2]


ReachSchematic - Shotgun

A blueprint of the M45 Tactical Shotgun.

The M45 Tactical Shotgun is a special-purpose weapon used in any situation where the range of engagement is close and limited and when over-penetration is not desirable, but maximum stopping power is required.[2] Like the M90 Close Assault Weapon System, the M45 is a pump-action, magazine-fed (dual tubular, non-detachable type) weapon that uses 8 gauge magnum (3.75”) ammunition. It features an adjustable stock, however this is purely cosmetic.


Operational History[]

The M45 was able to fire a variety of projectiles in early space faring conflicts. In the early 2400s, the UNSC Marine Corps abandoned the Shotgun as their main-stay poster boy weapon. Instead it was given to less important or, depending on the situation, less visible tasks within boarding parties and police forces. The M45 never truly vanished or has been completely replaced.[3] Eventually it found its way into the hands of the UNSC Army.


In gameplay, the M45 Tactical Shotgun is more powerful than the M90 Close Assault Weapon System from Halo 3 and Halo 3: ODST. The pellets have a tighter grouping and the range is superior as well, which also makes it harder to hit multiple enemies at close range. Although this change is hardly noticeable, impact force can be noticed as damage is higher.


  • In the Halo: Reach Multiplayer Beta, the shotgun had cyan lights (top picture) similar to those on the M90 in Halo: Combat Evolved and Halo 3. The sights are red in the final game.
  • The M45 is Emile's preferred weapon.