Cartridges or slugs
The Genii shotgun is one of the main weapons of the Genii military, along with others such as the Genii pistol. This weapon was much in use during the Genii play for the city Atlantis. It operates much in the same way that a Tau'ri shotgun would, though it is triple-barrelled, meaning that three projectiles are fired simultaneously. It may in fact be a copy of the Satedan rifle that the Genii made some modifications to and mass-produced.