A DEMP gun represented a compact version of an ion blaster, produced by Merr-Sonn Munitions, Inc., that discharged an electromagnetic pulse specifically for deactivating droids. It came in both a blaster carbine configuration and a blaster pistol variant. During the year 0 ABY, Sergeant TX-828 from the Galactic Empire's Stormtrooper Corps employed a DEMP gun to render the droid bounty hunter known as Captivator inoperable.
When set to maximum power, a single blast from a DEMP gun had the capacity to obliterate all electronic security systems safeguarding a sizable residence.