Description Ruger's GP100 revolver features a triple-locking cylinder that is locked into the frame at the front, rear and bottom for more positive alignment and dependable operation. Its patented transfer bar mechanism provides an unparalleled measure of security, while the integrated sub-assemblies allows for easy maintenance and assembly. The grip frame design easily accommodates a wide variety of custom grips. This Standard model has a stainless steel 4.2" barrel, frame, and cylinder. It also has a black rubber grip with a hardwood insert and a fiber optic front sight with an adjustable rear. Triple-locking cylinder is locked into the frame at the front, rear and bottom for more positive alignment and dependable operation shot after shot. Grip frame design easily accommodates a wide variety of custom grips. Takedown of integrated subassemblies requires no special tools and allows for easy maintenance and assembly. Transfer bar mechanism provides an unparalleled measure of security against accidental discharge.PRODUCT DETAIL:Family: GP100 Series Model: GP100 Type: Revolver Action: Double / Single Action Finish: Satin Stock/Frame: Steel Frame Stock/Grips: Black Rubber W/hardwood Insert Weight: 40 Oz. Caliber/Gauge: 357 Magnum | 38 Special Capacity: 7 Barrel: 4.2" Overall Length :9.5" Rate-of-twist: 1-in-18.75 Sights: Fiber Optic/rs: Adjustable Safety: Transfer Bar Additional Information: Triple Locking Cylinder, Black Rubber Hogue Monogrip, Hard Plastic Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.