The E-series was a series of blaster weapons produced by BlasTech Industries over a long period of time spanning at least from the Invasion of Naboo to the Galactic Civil War.
One of the most successful design of the series was the E-11 blaster rifle used by Imperial stormtroopers during the Imperial era. A more ancient BlasTech E-series blaster was illegally reverse-engineered by Baktoid Armor Workshop prior to the Invasion of Naboo to develop the E-5 blaster rifle: the weapon that equipped the Separatist battle droids during the Clone Wars.
- The Official Star Wars Fact File104