A fictional variable geometry manned giant robot from the Gundammechaverse. It first appeared in Gundam MSV.
RGZ-91B Re-GZ Custom
Customized and fully-transformable version of the Re-GZ, where the Back Weapon System's weapons are strengthened as it is integrated into the Mobile Suit, improving its combat performance and allowing it to transform into Wave Rider mode at will. This MS by Anaheim Electronics was originally developed for Amuro Ray (who previously used the Re-GZ), but deployment of the more advanced Nu Gundam meant this mecha was never used by him.
The most notable feature of this version is its beam assault rifle, which looks a lot like the Kalashnikov series of assault rifles.
