The high profile Vickers Elite Battlesight rear has a .145" wide, deep U-Notch for optimum sighting in low-light, dynamic range conditions and is a perfect match to our .125" wide front sights. The concave non-reflective rear blade is serrated 40 lines per inch, while the notch area is recessed into a semi-circular pocket for a crisp, protected sight picture. Two hardened set-screws ensure this sight will never shoot loose under the most demanding conditions. This snag-free rear sight also has a shelf shape that enables one-hand slide cycling or malfunction clearance and a rugged, non-reflective matte black parkerized finish. Mfg: Wilson Combat