The RX-110 Gabthley is a prototype transformable mobile suit introduced in the anime series Mobile Suit Zeta Gundam. It was piloted by Jerid Messa and Mouar Pharaoh.
The RX-110 Gabthley was developed by Paptimus Scirocco during the Gryps Conflict, and was intended for mass production. At least three test units were fielded, with positive results due to its unique design and high performance. In mobile armor mode, the Gabthley was one of the fastest units in the field, and its unique movable frame allowed the mobile suit mode's feet to become claws in mobile armor mode, giving the mobile armor the ability to perform limited melee and grappling attacks. Its armament include four beam sabers, a very powerful Fedayeen Rifle, and a pair of flexible shoulder-mounted mega particle guns, making the Gabthley highly effective in both close and long-range combat.
The RX-110 Gabthley was first tested by Jerid Messa and Mouar Pharaoh, who piloted it against Paptimus Scirocco in the PMX-000 Messala under his command. After the initial testing, the two units participated in Operation Apollo in pursuit of the Argama.