vierling

plural vierlings

1. A long firearm with four barrels (typically two shotgun barrels and two rifle barrels).

   The vierling gun that Alan Tuck hunts with is truly a handcrafted work of art.

   2009, Nebraskaland, volume 87, page 32

   2 more examples

   The Blaser D99 drilling can be custom made with two side-by-side shotgun barrels and a rifle barrel over them. Another variation on the multiple barrel shotgun is the vierling, which is the German word for quadruplet. A vierling has four barrels […]

   2015, Robert A. Sadowski, Gun Trader's Guide to Shotguns: A Comprehensive, Fully Illustrated Reference for Modern Shotguns with Current Market Values, Simon and Schuster, →ISBN

   2018, James Ballou, Arming for the Apocalypse: Assembling Your Survival Arsenal ... While You Still Can, Prepper Press […] three-barreled drillings, the two-barreled shotgun/rifle cape guns, and the four-barreled vierlings, which all featured some combination of rifle with shotgun barrels within the same gun.

plural Vierlings

1. A surname.