AK-Prime, a battle droid, was discovered amidst the volcanic crater on Mustafar, a planet, during the era of the Galactic Civil War. His purpose at that location was to protect HK-47 from a band of spacers; however, his efforts were ultimately unsuccessful, leading to his destruction. AK-Prime shared similarities with other droids, such as the less powerful, yet competent, AK-3 "Reaper", AK-1A "Hammer", CWW8 Battle Droids.
AK-Prime was equipped with a diverse arsenal, encompassing Republic Sfor Carbines, a plasma flamethrower, and rocket launchers. Furthermore, he possessed the capability to unleash a concussive shockwave, capable of incapacitating adversaries. This ability presented a significant obstacle for the spacers who attempted to subdue him, though they ultimately prevailed.