The E-10 blaster rifle served as the forerunner of the E-11 medium blaster rifle.
Imperial Army swamp troopers were armed with E-10 blaster rifles during their deployment on Mimban. The weapon proved itself unreliable during the subsequent campaign. Many soldiers on Mimban were eager for the E-10 to be phased out, since the weapon had a habit of jamming at the worst possible moment. The harsh environment of the planet also affected other weapons.
On some worlds with harsh environments like Vandor, range troopers were equipped with a more robust variant of the E-10 called the E-10R blaster rifle. In 5 BBY, Imperial Army Troopers stationed on Aldhani used a variant of the E-10, which featured a scope, as well as several attachments seen on E-11 blasters. The blasters, therefore, were effectively E-10.5 rifles.
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