Dead World: Isolation
A Derringer is a .45 caliber, breech loaded, two shot pistol, it is usually a weapon of last resort and or desperation.
A derringer is generally the smallest usable handgun of a given caliber. They were frequently used by women, because they are easily concealable in a purse or as a stocking gun. Such weapons designed specifically for women were called “muff pistols”, due to their compact size enabling them to be carried in a muff. Derringers are not repeating firearms—repeating mechanisms such as used on semi-automatic handguns or revolvers would add significant bulk to the gun, defeating the purpose.