The Model 66 is the stainless steel version of the Model 19 Combat Magnum. Introduced in 1970 for agencies requiring corrosion-resistant sidearms, it became one of the most popular duty revolvers of the 1970s and 1980s. Reintroduced in 2014 after a 12-year absence. Type: Revolver Action: DA/SA Caliber: .357 Mag Capacity: 6 Year introduced: 1970, USA Weight: 36 oz Overall length: 9.5" Status: Active Intended use: Duty, Competition, Home Defense