The Model 351PD is a 7-shot Airweight J-Frame chambered in .22 WMR with a Scandium alloy frame and Hi-Viz front sight. Seven rounds of .22 WMR from a package weighing under 11 oz makes it a capable and ultralight field revolver. Type: Revolver Action: Double-Action Only Caliber: 22 WMR Capacity: 7 Year introduced: 2004, USA Weight: 10.6 oz Overall length: 6.3" Status: Active Intended use: Field / Concealed Carry