American Precision Firearms Prismatic, Dueller, 1911, Semi-automatic, Single Action, Double Barrel, Steel Framed Pistol, 45ACP, 5 Barrels, Matte Finish, Black, Wood Grips, 7+7 Rounds, 2 Magazines AFDP-45-BK-14 The Dueller Prismatic is a double-barreled self-loading pistol. Structurally, it consists of two Colt M1911 pistols connected by side surfaces into one. It was created and produced by the weapons company Arsenal Firearms.