The OZ-19MASX Gundam Griepe is the ultimate G-UNIT, with high mobility in space and on earth. Secretly completed by Odel Bernett, its control system is specifically turned for his younger brother, Odin Bernett, and the mobile suit played a key role in stopping OZ Prize and the OZ-15AGX Hydra Gundam. Like the OZX-GU01LOB Gundam L.O. Booster, the Griepe can transform into a high-speed flight mode, bolstered by a revolutionary propulsion engine developed by Mark Bernett, the late father of Odel and Odin.
Like the earlier G-UNITs, the Griepe has a modular design and the PX System which takes advantage of the pilot's increased adrenaline during combat and also increases the performance of the mobile suit. However, the system has a time limit which if passed has serious consequences for both the pilot and the suit. The suit can use a beam lancer and the hyper mega particle launcher in MS Mode, while its MA Mode mounts a buster mega particle cannon under its nose. There is also the Assault Mode, halfway between MS and MA Mode, for firing the cannon without fully transforming.
