The M555 Electromagnetic Launcher, more commonly known as the Gauss turret, is a heavy weapon featured in Halo 5: Guardians.[1]

Operational HistoryEdit

Testing and DesignEdit

During it's testing and design phase, it was known as the "X555 Electromagnetic Launcher Advanced Technologies Testbed".[1]


At least one M555 was given to the Liang-Dortmund Corporation. It was used during the Battle of Meridian in late 2558 to defend the town of Meridian Station.[2]


ONI Gauss Turret - A variant of the M555 Gauss Turret where the slugs produce lingering area-of-effect damage.


The Gauss turret can be found in tripod form. Like other turrets, it can be removed from its mount. Picking up the gauss turret results in a lack of mobility. The turret behaves like the M68 Asynchronous Linear-Induction Motor in previous Halo titles.



  1. 1.0 1.1 1.2 1.3 Halo Waypoint: Universe- Gauss Cannon
  2. Halo 5: Guardians - Level: Glassed