The high profile Wilson Combat Vickers Elite Battlesight rear .223" height sight has a .145” wide, deep U-Notch for optimum sighting in low-light, dynamic range conditions and is a perfect match to Wilson Combat 0.125” 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. Once you try this sight system you will be convinced that the Vickers Elite Battlesight is the best performance upgrade you can make to your Sig Sauer pistol!