Ruger SP101, Double/Single Action, Revolver, Small Frame, 357 Magnum, 4.2 Barrel, Stainless Steel, Satin Finish, Silver, Rubber Grips with Wood Inlay, Fiber Optic Front and Adjustable Rear Sights, 5 Rounds, KSP-341X 05771 The Ruger SP101 Revolver is the perfect companion. The cushioned rubber grip with a black or hardwood insert has no exposed metal in the backstrap, making it extremely comfortable and the patented grip frame easily accommodates a variety of custom grips. The patented transfer bar mechanism provides an unparalleled measure of security against accidental discharge. Its triple-locking cylinder is locked into the frame at the front, rear and bottom for more positive alignment and dependable operation shot after shot.