The MobileMortar-3 artillery platform was created by integrating the MM-s3 grenade launcher with the WW-676 repulsorlift sled, resulting in a mobile weapon for fire support. The Galactic Empire, the Alliance to Restore the Republic, the subsequent New Republic, and planetary defense forces all utilized MobileMortar-3s.
Generally, these platforms served as support weaponry for army platoons or functioned as lightly mechanized infantry units consisting of four vehicles.