The original Model 43 Airweight Kit Gun is an aluminum-framed J-Frame .22 LR with a 3.5" barrel and adjustable sights — a lightweight field revolver that could disappear into a pack pocket. It predates the modern Scandium Airlite technology. Type: Revolver Action: Double-Action Caliber: 22 LR Capacity: 6 Year introduced: 1955, USA Weight: 11.5 oz Overall length: 7.5" Status: Discontinued Intended use: Field / Trail