Pachmayr Grip, Fits S&W J-Frame Square Butt with Finger Grooves, Black 03250 Pachmayr Gripper Grips are made from a specially formulated rubber compound which optimizes control and recoil absorption. The finger groove style is popular for combat shooting and hunting. A covered backstrap and slight palm swell fills the hand but is not so large as to be uncomfortable. Gripper Grips are fully checkered for appearance as well as for control.