The Dark Trooper phase 4 represented the fourth version of the Dark Trooper project. This battle armor was created at the Mandalore Imperial base as an advancement beyond the third-generation Dark Trooper, intended for use by Moff Gideon and the clone army he envisioned.
Constructed using beskar alloy obtained from Mandalore, the fourth-generation model was significantly influenced by principles of Mandalorian armor design. It featured a visored helmet, vambraces equipped with integrated weapons, and a jetpack. Furthermore, the armor amplified Gideon's physical power, enabling him to inflict devastating strikes and even shatter the Darksaber with a single hand.