The Model 317 Kit Gun is an aluminum-framed 8-shot .22 LR J-Frame revolver. Weighing only 10.8 oz, it serves as an ultralight field and trail gun. The Kit Gun tradition at S&W dates to the 1930s as a versatile outdoors companion. Type: Revolver Action: Double-Action Caliber: 22 LR Capacity: 8 Year introduced: 1997, USA Weight: 10.8 oz Overall length: 6.3" Status: Active Intended use: Field / Trail / Plinking