Description: BSA Optics 30RD-2M Red Dot 30mm Objective 5MOA Red Dot Black Color Dovetail and Weaver Mounts 30RD-2MThe 30RD-2M is a versatile 30mm Red Dot scope available with both a Dovetail and Weaver mount. With 11 brightness settings this red dot is excellent for both low light and bright light conditions..