Tetryon pulse launcher

From Memory Alpha, the free Star Trek reference

The tetryon pulse launcher is a type of particle weapon that fires tetryon pulses.

In 2375, Captain Jean-Luc Picard took eight tetryon pulse launchers on his mission to help the Ba'ku resist forced resettlement by the Son'a. (Star Trek: Insurrection)

[edit] Apocrypha

In the video games Star Trek: Elite Force and Star Trek: Elite Force II, tetryon pulse weapons designed by the Hirogen and the Klingons are available for the player, such as the tetryon pulse disruptor (β) and the tetryon gatling gun (β). Both are capable of firing tetryon energy bursts that bounce off surfaces when magnetically constrained.