A stainless Model 1 in 357 Magnum — the most powerful standard American Derringer chambering in the original format. Heavy recoil from the 15 oz stainless frame makes this the most challenging AD to shoot well. Type: Derringer Action: Break-Action Caliber: 357 Mag Capacity: 2 Year introduced: 1981, USA Weight: 15 oz Overall length: 4.82" Status: Active Intended use: concealed carry, backup