An aluminum-framed Model 1 in 45 ACP — the lightest American Derringer in the centerfire defensive caliber range. Designed for carry comfort while still delivering 45 ACP terminal performance. Type: Derringer Action: Break-Action Caliber: 45 ACP Capacity: 2 Year introduced: 1988, USA Weight: 10 oz Overall length: 4.82" Status: Active Intended use: concealed carry, backup