The Remington Double Derringer consists of a frame and two vertically aligned barrels joined into a single unit. The hinge on which the barrels are secured is located at the top of the frame. The locking lever is located on the right side of the weapon and, when turned, locks the lower projection of the barrel unit. The pistol has an open trigger. The position of the striker changes due to a special mechanism, due to which the latter alternately strikes the primer of first one barrel, and then the other.