The Model 617 is a K-frame stainless steel revolver chambered in .22 LR with a 10-shot cylinder — holding nearly twice as many rounds as a standard 6-shot revolver. Designed as a training analog for centerfire K-frame service revolvers, the Model 617 allows officers and civilians to practice double-action revolver skills with inexpensive .22 LR ammunition. The 4-inch barrel is the primary service-length configuration. Type: Revolver Action: Double-Action Caliber: .22 LR Capacity: 10 Year introduced: 1990, USA Weight: 44 oz Overall length: 9.5" Status: Active Intended use: training, target, plinking, competition