Elite Airsoft shows us this single firing Derringer Airsoft Pistol from ASG... "Extremely compact 2 round pistol the Derringer is a single firing backup weapon. It is small and light weight and the two BB’s are loaded by tipping the front up. The gas is stored in the grip and filled at the valve in the bottom of the pistol grip. The Derringer 6mm airsoft replica is made in an excellent chrome finish and will make a perfect partner for you at any poker table."