From The Stargate Omnipedia
Handheld weapon developed by the Asurans
for personal defense. The technology emits pulses of blue energy which may or may not be capable of penetrating Ancient
It is not known if the Asuran pistol is based on a model originally created by the Ancients (like the rest of their civilization) or is an original design.
Progeny - Asurans keep fresh captors under control with energy pistols during their encounter with the Atlantis expedition.