Swarm gun
A Swarm gun was a type of hand-held particle weapon used by Swarm drones. Swarm guns fired green pulses of light.

Swarm guns were used by Swarm soldiers during the Battle of Altamid, as they were invading the . At one stage in that battle, in the starship's manual release room,  managed to wrestle a Swarm gun from out of the hold of a Swarm drone in order to fire it at another of the Swarm troops.

Later, when a Swarm ship which had been commandeered by  and Doctor  crash landed on the surface of the planet Altamid, a Swarm gun from the ship ended up in a pool of murky water, directly beside the downed craft. After cracking the front of the weapon open with a ripped-off and sharp-edged component from the Swarm ship, McCoy fired the weapon at the component, superheating it. He then used the red-hot component to cauterize the Vulcan's shrapnel wound and thereby stop the bleeding. ()

Hand-held weapons
Alternate reality
Memory Alpha articles named from supplementary resources
Directed energy weapons