A prototype mobile suit intended for mass production, Anaheim Electronics' RGZ-91 Re-GZ was a simplified version of the AEUG's MSZ-006 Zeta Gundam used in the Gryps Conflict and the Neo Zeon War. The Re-GZ (short for REfined Gundam Zeta) eliminated the costly and complex transformation systems used by the Zeta Gundam, instead docking with a specialized Back Weapon System (or BWS) unit which allowed the Re-GZ to assume a waverider-like form for additional mobility. As the mobile suit's weapons could not be used in this docked configuration, the BWS was armed with beam weapons and missile launchers, giving the Re-GZ considerable firepower in waverider mode. In the end, however, the Re-GZ would still be deemed too expensive to facilitate mass-production, and the design project was dropped. The Re-GZ prototype would end up being employed by the Earth Federation Forces' Londo Bell taskforce during the Second Neo Zeon War, piloted first by renown Newtype ace Amuro Ray, and later by mobile suit squadron leader Kayra Su. The more you know!