Original British Four Barrel Duck's Foot Flintlock Pistol by Wiggin of – International Military Antiques
4 Barrel Pistol: The Signal Defense RELIANT | RECOIL
Four of a Kind - Sporting Classics Daily
Four Barrel - FAMARS USA
M) UNUSUAL SIDE BY SIDE RIFLE / OVER-UNDER SHOTGUN VIERLING (FOUR BARREL) COMBINATION GUN BY JUCH-G | Guns & Military Artifacts Shotguns Over Under Shotguns | Online Auctions | Proxibid
1940 STOEGER Double Barrel Rifle Over Under Rifle Four Battel Gun PRINT AD | eBay
The Winchester Liberator - A Quad-Barrel Shotgun | SOFREP
Antique four barrel flintlock gun carbine
US military orders prototype 'space age' rifle that can fire four bullets at once | Daily Mail Online
Sold Price: An extremely rare four barrel percussion gun by N. Vivario Plomdeur - Invalid date CEST
The oddly fascinating Johann Fanzoj 4 barrel combination gun - YouTube
The Vierling – Hausmann & Co Makers of fine Guns and Rifles