Imperial Repeater Rifle

The Imperial Repeater Rifle, also known as the Imperial Repeater Gun or Autogun, was a type of repeating blaster prevalent during the time of and immediately after the Galactic Civil War, probably an evolution over the Light repeating blaster of the time of the Battle of Naboo. The weapon was originally developed by Moff Rebus as a prototype weapon for the dark troopers, but was later replaced by the assault cannon.

A fast and highly accurate ranged weapon used by stormtroopers, it featured two firing modes: single shot mode or a slower tri-shot burst in triangular configuration.

Though the weapon was powerful indeed, its main flaw was that it wasted ammunition extremely fast. This was probably the reason that the weapon was eventually replaced with the Imperial Heavy Repeater.

Behind the scenes
According to Justin Chin, the Phase II Dark Trooper was originally going to carry a Imperial Repeater with a ribbon chain clip to an ammo pack slung in the back.

The 'Dark Trooper Weapon' Katarn finds in the second level of the game matches indeed a Repeater Rifle in appearance.

Appearances

 * Star Wars: Dark Forces
 * Jedi Knight: Dark Forces II
 *  Mysteries of the Sith