The Gundam Flauros' strength lies in the back-mounted long-range shelling unit and to maximize its power, a transformation mechanism is incorporated into the suit's frame. This allows the Flauros to change into a quadruped form known as 'Shelling Mode', which excels in ultra long range shooting and is primarily for ground combat. The mode's quadruped form improves the accuracy of the suit's railguns and helps absorb the recoils due to its low posture and because the suit is fixed to the ground surface. It also supports immediate evasion during shooting. The suit's cockpit rotates to accommodate the different modes, and as a result, it has two different hatches. One at the top of the chest for use in Shelling Mode, and another at the front of the chest for MS mode.
As Tekkadan failed to reactivate the Gundam Flauros after discovering it in a half-metal mine, they sent it to Saisei. The Saisei's mechanics found that its two Ahab Reactors were in a sleep state, and successfully reactivated and overhauled the machine. Unlike the ASW-G-08 Gundam Barbatos and the ASW-G-11 Gundam Gusion Rebake, the overhaul of the Gundam Flauros did not involve feedback based on pilot's data but was focused on restoring its original functions. As an example, the damaged railguns were replaced with newly built units based on the data Teiwaz had. Other modifications include changing the mobile suit's Nanolaminate Armor color to match its pilot's preference based on orders from Tekkadan and a cockpit from Teiwaz's MS series, but with an Alaya-Vijnana System compatible seat, was installed in place of the mobile suit's missing cockpit. The restored Gundam Flauros was dubbed by its pilot, Norba Shino, as the 'Ryusei-Go IV'.