Disruptor cannon
A disruptor cannon was a directed energy cannon weapon commonly used aboard starships of many different species. 

Klingon 22nd century Klingon Birds-of-Prey were equipped with an impressive arsenal, for the time, and included wing-mounted (and belly-mounted) disruptor cannons and photon torpedo launchers. () These cannons were capable of firing in either disruptor pulse or beam modes. ()

These weapons were also found in later designs of Klingon Birds-of-Prey, Negh'Var warships, and  cruisers. (; )

de:Disruptorkanone
ja:ディスラプター・キャノン
Directed energy weapons