M6 series
From Halopedia, the Halo wiki
M6 is a series of short-barreled weapons produced by Misrah Armory. They have seen widespread distribution through the United Nations Space Command Defense Force as lighter firearms.
- M6B Magnum Sidearm - UNSC sidearm featuring KFA-2 x2 scope.
- M6D Magnum Sidearm - Halo 2-era UNSC sidearm, armed with semi-armor piercing ammunition.
- M6C Magnum Sidearm - Halo: Combat Evolved-era UNSC sidearm, armed with high explosive ammunition and featuring KFA-2 x2 scope.
- M6G Personal Defense Weapon System - Halo 3-era UNSC sidearm, armed with high explosive ammunition.
- M6J Carbine - UNSC Army carbine variant of the M6 series.