The Model 351PD Airlite is a 7-shot .22 WMR J-frame-size revolver with a scandium alloy frame, weighing approximately 10.6 ounces. The slim .22 WMR case allows a 7-shot cylinder in the compact frame. Provides .22 WMR energy — meaningfully more than .22 LR — in an extremely lightweight carry package. Type: Revolver Action: Double-Action Caliber: .22 WMR Capacity: 7 Year introduced: 2004, USA Weight: 10.6 oz Overall length: 6.5" Status: Active Intended use: concealed_carry, backup, hunting