The DL-21 blaster pistol represents a specific blaster pistol design manufactured by BlasTech Industries. This particular blaster was characterized by a scope mounted on its upper surface, along with a distinctive finned muzzle which could be detached.
Shortly after the Battle of Hoth, the bounty hunter Dengar carried a DL-21 in a holster while present on the Executor. Colonel Dyer and Commander Renz, officers within the Tempest Force garrison, also employed this blaster model, although theirs were missing the finned muzzle. Din Djarin stored a DL-21 on his ship, the Razor Crest. During a mission to extract Qin, the Devaronian Burg wielded a pair of DL-21s. Furthermore, the DL-21 saw use by members of the Aqualish crime family during their ambush of the Mods. Numerous inhabitants comprising the Freetown garrison also deployed DL-21s in their defense against the invading Pyke Syndicate forces.