Action: SA/DA - Caliber: .410 2 1/2 .45 ACP .45 Colt - Capacity: 6 - Finish: Matte Black - Material: Scandium Alloy - Grips: Black Synthetic - Sights: Tritium Night Sight (Dovetailed) / Fixed - Barrel Length: 2.75 - Overall Length: 8.5 - Weight: 29.6 oz - New. Versatile. Lightweight. The Smith & Wesson Governor revolver puts six rounds of customizable response under your control. Load with .410 2 1/2 shotshells .45 ACP or .45 Colt - alone or in combination with the included moon clips* - and hit your target in every situation. Plus it's from the leading expert in revolver manufacturing over the past 159 years. Now that's confidence.