M655 Heavy Machine Gun/Anti-Matériel

The M655 Heavy Machine Gun/Anti-Matériel is a 20mm HMG used by the UNSC Defence Force. Some versions of the HRUNTING/YGGDRASIL Mark IX Armor Defense System are armed with an M655 as well as an M5920 surface-to-surface missile launcher.Halo 4 Interactive Guide
==Trivia==
*In gameplay, the M655's barrels do not spin when the weapon is fired.
==Appearances==
*Halo 4 
**Spartan Ops
==Sources==
Category:Human Weapons
Category:Machine Guns
Category:Vehicle Weapons