The 2014 Model 66 reissue is essentially identical to the original except for the 4.25" barrel length (vs. original 4") and a revised cylinder crane lock. S&W eliminated the internal lock on this reissue, a decision praised by traditionalists. Type: Revolver Action: Double-Action Caliber: 357 Magnum Capacity: 6 Year introduced: 2014, USA Weight: 36.5 oz Overall length: 9.6" Status: Active Intended use: Service / Carry