Wax cast steel, not polished, this traditional style sight is suitable for a long rifle with a 13/16", or 7/8" octagon barrel. This high sight reduces heat mirage, and tilt minimizes glare. Sight has a notch cast in the blade, which can easily be enlarged if necessary. Made in the U. S. A., dovetail to a depth of .050", dovetail is .380" long, and .530" wide. Height from the bottom of the dovetail to the top of the sight notch is 0.31".