The Smith & Wesson Governor is a quite small-size single/double-action Z-frame revolver, but very powerful at the same time. It shoots a variety of calibers - .410 2.5-inch shotshells, .45 Colt, and .45 ACP, with 6-round capacity, and there are 2-round and 6-round Moon clips included for use with .45 ACP. A Moon clip is a ring-shaped (or star-shaped) metal part designed for insertion and extraction of the bullets at the same time. There are two versions available, one with a black ramp sight and another one with a tritium dovetailed night sight. The model with a night sight has a stainless PDV cylinder and the other one is made of stainless steel only. The frame is made of scandium alloy material. The grip is synthetic and the barrel is stainless steel, too. Overall, this is a perfect six-round, versatile, lightweight revolver for home defense and survival shooting with customizable caliber options.