Target-style, globe front sight helps your eye isolate the black center of the bullseye for improved sight definition and more consistent accuracy. Designed to provide best results when used with the Daisy globe-style front sight. Can be used on the Daisy Models 853 and 953 target rifles without alterations. Delrin nylon plastic body, black color, 1 long, 5/8 internal diameter. Includes one, 4mm diameter aperture sight insert, screw clamp fits nominal 3/8 front sight dovetails.