C-B3 cortosis battle droid

Cortosis battle droids were a line of battle droids developed by the Techno Union to specifically combat Jedi.

Their outer shell was made out of cortosis, a substance that could block lightsaber attacks.

They were first deployed in limited numbers on Tatooine, but were used more extensively in the attack on Coruscant and the defense of the Techno Union foundries on Metalorn.

Production of Cortosis battle droids ended when Anakin Skywalker destroyed the Metalorn factory ten months after the Battle of Geonosis.

Appearances

 * Star Wars: The New Droid Army