The high profile Vickers Elite Battlesight rear has a 0.145 wide, deep U-Notch for optimum sighting in low-light, dynamic range conditions and is a perfect match to our 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. Sights may require minor fitting and may not be returned after installation. The Vickers Elite Glock Sight set requires the use of a 0.245 tall front sight for all caliber Glock pistols except for .45 ACP and 10mm which will typically require the 0.230 front sight. Sights may require minor fitting and may not be returned after installation. These front sights are taller than factory Glock and not compatible with standard factory rear sights without adjusting the sight height. Overall Sight Height: 0.325. Rear Blade Height: 0.245.