Sile Walnut Target Grips for Ruger Security Six or Service Six Square Butt revolvers. Genuine walnut grips, new and never installed. They have a comfortable Target/Thumbrest with a Sile Eagle medallions and checkered panels for optimal control. Will fit any Security Six or Service Six Square Butt revolver made between 1974 and 1988 with a true Square Butt Grip Frame (note: will not fit GP-100 revolvers or Pre-1975 revolvers and they will not accommodate speed loaders as they are thumbrest variant). Sile manufactured brand grips have been around for many prior decades and were known for high quality replacement grips, stocks and forearms. * wood grains/color may vary