Start of lstUrls_of_images_in_html_description Product Number: S1300928 OPTILOCK scope mount rings are precisely machined out of solid steel to ensure perfect mating with our integral receiver scope mount rails and optimal scope alignment. OPTILOCK scope mount rings come clamshell-packed in pairs. Hex key included. OPTILOCK scope mount rings feature a patented spherical fastening ring which makes scope mounting considerably easier. This protective sleeve also ensures that the scope body will not be scratched or damaged during mounting. Specifications Diameter: 30mm Height: Extra Low, 30.5 Objective Lense Maxium Outer Diameter: 55mm-63mm Finish: Black Material: Steel End of lstUrls_of_images_in_html_description