Rear sight: Height over bore of 1.25 Inch Aperture: Steel Rail: 6061-T6 Aluminum, Type III, class 2 anodized finish Length: 5.98 Inch Width: 0.84 Inch Height: 1.1 Inch Weight: 2.9 oz. Front Sight: Sight post: Steel Base: 6061-T6 Aluminum, Type III, class 2 anodized finish Length: 0.74 Inch Width: 0.68 Inch Height: 0.87 Inch Weight: 0.3 oz. Front Sight Adjustment Tool: Material: 6061-T6 Aluminum Finish: Type III, class 2 anodized Width: 0.38 Inch Height: 1.50 Inch Weight: 0.2 oz.