American Derringer's Model 1 in 22 LR is the smallest centerfire-grade over-under derringer in production. Stainless steel construction with rosewood grips. Type: Derringer Action: Break-Action Caliber: 22 LR Capacity: 2 Year introduced: 1980, USA Weight: 15 oz Overall length: 4.82" Status: Active Intended use: concealed carry, collecting