Night Fision Optics Ready Stealth Night Sight Set Features The yellow front sight is engineered with a domed lens which focuses tritium rays to create a crisp and precise sight picture making target acquisition quicker and more reliable. Paired with the black rear sight the design ensures minimal distractions and optimal focus for precise aiming. Constructed from CNC-machined steel the sight set is built for long-lasting durability with a Black Nitride coating that provides enhanced resistance to wear and corrosion. Specifically designed for optics-ready Walther PDP pistols the set offers a seamless fit and reliable performance. While gunsmith installation is recommended these sights are crafted for easy integration into your firearm. Night Fision Optics Ready Stealth Night Sight Set Specifications Manufacturer: Night Fision Model: Optics Ready Stealth Night Sight Set Front Sight: Yellow with tritium insert and domed lens Rear Sight: Black with no tritium Material: CNC Machined high-quality steel Finish: Black Nitride coating Features: Brightest tritium on the market Domed lens for sharper sight picture Compatibility: Walther PDP Compact 4 Walther PDP Full Size 4 Walther PDP Full Size 4.5 Installation: Gunsmith recommended Tritium Source: Swiss Tritium Country of Origin: Built in the USA