Like the Gray Death light scout suit, the Gray Death Standard BattleArmor design was created after the NAIS supplied the Legion with BattleArmor prototypes for field testing shortly after the initial Clan invasion. Responding to the assessments of the Legion troops, the Legion engineers enhanced the capabilities of the NAIS-supplied BattleArmor and sent them into the Clan's path to see how they worked.
         The Legion's BattleArmor made its debut against the Jade Falcons on the world of Pandora. Fighting amidst the thick jungle near the town of Vandmaal, the armor proved decisive in the Legion's victory over the Clan.

         The Gray Death Standard BattleArmor suit is designed to reinforce conventional infantry when facing heavy BattleMech opposition. The armor offers the wearer both a physical and psychological edge. By amplifying the wearer's strength, it improves his chances of success in climbing onto a moving BattleMech in dangerous anti-'Mech maneuvers. The suit's thick armor not only protects against weapons fire, but also reduces the feelings of exposure and vulnerability commonly experienced by infantry troops doing battle against opponents in BattleMechs.
         This BattleArmor lacks the jump jets that many other BattleArmors use, but has a much faster ground speed than normal. It carries similar main weapons though, rotating between a laser, machine gun, flamer, and a two-shot SRM system. It also sports an anti-personnel weapon for use in infantry-support operations and an enhanced sensor suite.

         In the years following the Truce of Tukayyid, throughout the Civil War, Jihad, and beyond, the Gray Death Legion Standard BattleArmor continued to prove its worth in repeated engagements against a variety of foes. Like the Legion's light scout suit, the standard BattleArmor is manufactured by the Legion and their friends, and is used by the Federation of Skye and by members of the Allied Mercenary Command, where its cheap price compared to a Genasi is very important.