Ruger GP100 .357 Magnum Double Action Revolver. Ruger GP100 Double Action Revolvers are among the easiest-shooting pistols on the market. Their rugged, medium-sized frame and grip system permit repeated firing with minimal shooter fatigue. All GP100 Revolvers boast solid steel sidewalls-not side-plates-and frame widths that are beefed up with extra steel in critical areas that support the barrel, making them as rugged and reliable as they are easy to shoot. Recoil-reducing, cushioned black rubber Hogue Monogrip provides non-slip comfortable grip Patented Ruger transfer bar mechanism and loading gate interlock provide an unparalleled measure of security against accidental discharge Triple-locking cylinder is locked into the frame at the front, rear and bottom for more positive alignment and dependable operation, shot after shot Easy takedown with no special tools for simple maintenance and assembly Patented grip frame design easily accommodates the use of a wide variety of custom grips Heavy, full-shrouded barrel Satin stainless finish Hard plastic case included