Disruptor pistol

A  disruptor pistol was a type of directed-energy weapon used by the Klingons, Romulans and Breen as handguns. 

Disruptor pistols were used to kill were-hawks in order to rescue a stranded Hydran away team.

Lyrans engaged in pistol duels, much like Far West gunslingers. Akril, the security chief of the Enterprise fought the first officer of Starbase 148 in a disruptor pistol duel, and prevailed.