Exar Kun's lightsaber

Exar Kun's lightsaber was the lightsaber used by the Jedi Exar Kun during the Great Sith War. Originally a standard blue-bladed lightsaber, after becoming a Sith Lord Kun modified it into what is believed to be the first double-bladed lightsaber. Unlike later weapons, however, Kun's lightsaber had adjustable blades: they could extend anywhere between .5 and 1.5 meters, and switch between a standard lightsaber blade and one that was mere a beam of light, allowing him to tricking and overextending his opponents. The weapon was destroyed in the Battle of Yavin IV.

Appearances

 * Tales of the Jedi: Dark Lords of the Sith
 * Tales of the Jedi: The Sith War