A prototype ground mobile suit developed independently by Zeon's Earth Attack Forces. As shown by its model number, the Efreet is positioned between the MS-07 Gouf and MS-09 Dom. Like the Gouf, it specializes in close combat, but unlike the Gouf, which is more of a technical fighter, the Efreet is more of a power fighter, pushing its high thrust and high output to the forefront. Furthermore, while the Gouf emphasized fixed armament, the Efreet uses specially developed handheld weapons.
It possessed one of the highest close combat capabilities of any ground-based MS in Zeon, and its thrust surpassed even that of the MS-14 Gelgoog. However, its production was discontinued after eight units were completed as the Zeon military's upper echelons were prioritizing the development of space-use MS, and because of its poor operability and difficulties in production. Although the number of units produced was small, there was a large margin in design, and multiple variations existed.
One of the Efreets produced was piloted by Captain Henry Boone, leader of the Zeon's Wolf Gar Team, who commanded Operation Desert Dragon to overtake the Albatross Transport Base in the Gobi Desert. Another Efreet unit was piloted by Captain Doug Schneid of Zeon's Marchosias Corps. Doug Schneid's Efreet was painted in his custom purple colors, and equipped with armaments to fit his combat style. Doug Schneid's Efreet survived the One Year War and would fall into the possession of Zeon Remnants, who modify it further over the years into the MS-08TX/S Efreet Schneid.