Ferengi phaser
From Memory Alpha, the free Star Trek reference
The Ferengi phaser was a weapon used by the Ferengi which fired a forced plasma beam. (TNG: "Descent")
In 2369 the Rakhari criminal Croden used a Ferengi phaser when he went into holosuite one to steal a valuable egg item from the two 8[Miradorn]]s Ah-Kel and Ro-Kel. Constable Odo later mentioned that it was curious he used such a weapon and suggested Quark behind this. (DS9: "Vortex")
In 2374, Quark and some of his gang took Ferengi firearms with them to trade Keevan for Ishka in a prisoner exchange on the space station Empok Nor. Later in 2375, he took it with him to AR-558 to defend himself and his nephew Nog from Jem'Hadar. (DS9: "The Magnificent Ferengi", "The Siege of AR-558")
The prop used as a Ferengi phaser in the latter two episodes was originally designed as a Vulcan weapon (likely for TNG: "Gambit, Part II") as mentioned in The Art of Star Trek. Here it was repainted silver to represent a Ferengi weapon, and was later seen as a rebel weapon in the mirror universe in DS9: "The Emperor's New Cloak".
