Extra long fiber optic rod provides a glowing sight picture that draws your eye to the sight. Open center blade lets in lots of light for a bright red, easy-to-see dot. Works well with ghost ring, v-notch and conventional sights. Includes spare optic rod. Mfg: Brazos Custom Gunworks SPECS: Steel, black, matte finish. Kimber/Novak 65° x .330" x .075" dovetail. .127" (3.2mm) wide, .200" (5mm) high. .820" (21mm) long.