The
Multi-shot Accessory Underbarrel Launcher, or
MAUL, is a
semi-automatic shotgun formerly manufactured by defunct
Brisbane-based company
Metal Storm. It is able to fire a range of loads; buckshot, slug, door-breaching slugs, and less-lethal blunt-force loads are preloaded in 5 round "
stacked projectile" munition tubes. With a
12-gauge bore and weighing less than , it is designed to be used as an underslung module of a
combat rifle such as
M4 or
M16, but may be used as a standalone