Created by Allan Adams, former PPSE Chief Engineer, the Reversible Gundam is an all-purpose machine with every kind of armament, and could also handle mid-range fire support and long-range sniping. Due to its versatility, it is capable of adapting to any battle situation.

Like its base Gunpla, the Reborns Gundam, the Reversible Gundam can transform between Gundam mode and Cannon mode, but it also has an additional Tank mode like the CB-0000G/C/T Reborns Gundam Origin, the Reborns Gundam's original design. Using this feature as a clue, Allan also incorporated other original transformation gimmicks into the Gunpla.

The Gundam mode is a very versatile human-like mode, while the Cannon mode is for mid-range combat and combines the versatility of the Gundam mode with the firepower of the Tank mode. The Tank mode is mainly for long-range artillery bombardments, but also features large claw hands for melee combat in an improvement over the Reborns Gundam Origin's Tank mode. In addition, the Tank mode also has high-speed mobility due to the use of hover units