This is a standard 3/8" dovetail front sight. It comes with six .080 diameter LitePipes, in Red, green and white and a key to Interchange the LitePipes. It fits rifles and muzzleloaders with a 3/8" dovetail. The height of the DOVM sight is measured from the bottom of the dovetail to the top of the sight. All steel construction. Specifications: - fits: any 3/8" dovetail - height: .420" - 7/16"