Six-inch N-frame .357 Magnum Highway Patrolman — the extended-barrel configuration favored by target shooters and highway patrol officers who preferred the longer sight radius. The definitive service revolver of American state police in the 1960s-70s. Type: Revolver Action: Double-Action / Single-Action Caliber: 357 Magnum Capacity: 6 Year introduced: 1954, USA Weight: 46 oz Overall length: 11.5" Status: Discontinued Intended use: Duty / Service, Law Enforcement