BR85HB SR Battle Rifle
From Halopedia, the Halo wiki
File:Http://download.gamezone.com/uploads/image/data/1097512/Halo4 BattleRifle 2.png The BR85HB SR Heavy Barrel Service Rifle is the successor to the BR55HB SR Battle Rifle. It is a select-fire rifle utilized by the UNSC Defense Force and manufactured by Misriah Armory.