The AMX-004 Qubeley Mk-II is the successor to the AMX-004 Qubeley featured in Mobile Suit Gundam ZZ. At least two units were built, piloted by Elpeo Ple and Ple Two respectively.
In terms of technology and performance, the two Qubeley Mk-II units were virtually identical to the original Qubeley, but they've been detuned and updated with mass production in mind. The other noticeable difference between the two Qubeley Mk-II's is the different color schemes. The first unit, AMX-004-2 Qubeley Mk-II, featured a dark purple color scheme and a hilted beam saber. The second unit, AMX-004-3 Qubeley Mk-II, had a red-and-yellow paint scheme.
The AMX-004-3 was built near the end of the First Neo Zeon War and piloted by Ple Two, who briefly used it in a failed assassination attempt against Haman Karn and was later destroyed in battle against Judau's ZZ Gundam and the SCVA-76 Nahel Argama. Ple Two survived and quickly moved onto another mobile suit.