Ergo Grip Rubber Delta Grip, Fits S&W J-Frame Revolvers, Black 4581-SWJ ERGO's Delta Grip is the first truly ergonomic grip for J-Frame revolvers. The Delta Grip was engineered to fit the natural point of aim and mechanics of the human hand" wrist and arm. The result is a grip with a superior natural point of aim" comfort and control. Does not fit S&W Bodyguard models.