A derringer is a small handgun that has a short barrel and is only single or double shot. The derringer pistol is great for concealed carry, and often considered a great handgun for women due to its small size, but powerful shot. Fin Feather Fur Offers leading brands like Bond Arms & North American Arms in .22 LR, .45 Colt, and .357 Mag and other options of derringers for sale.