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. A moon clip is a ring-shaped or star-shaped piece of metal designed to hold multiple cartridges together as a unit for simultaneous insertion and extraction from a revolver cylinder.