Duck-Foot

The duck-foot is the same size as an ordinary pistol, but instead of one barrel, it has four arranged in a splayed pattern, not unlike a duck’s foot. Though wildly inaccurate, the duck-foot is useful to ship captains with mutinous crews, or anyone else ring into a crowd. When sparks hit the ashpan, the charges ignite in all four barrels, blasting four targets within range. A duck-foot fires shot, either bullets, broken glass, nails, or some other ammunition, in a 45-degree cone out the barrel of the weapon.

The duck-foot, a flintlock weapon, was built by Empire engineers.

Source

 * Warhammer Fantasy RPG 2nd ED -- Old World Armoury
 * pg. 44