Product DescriptionXS Sights R3D Night Sights deliver a traditional three-dot tritium sight picture with a high-visibility front sight engineered for fast, confident target acquisition. The blacked-out rear increases contrast against the bright front dot, which uses XSs Ember Glow Dot Technology to absorb ambient light and remain visible in low light. Built for HK VP9 Optics Ready pistols, this suppressor-height set provides a lower-third co-witness with popular slide-mounted optics and installs using a sight pusher or basic hand tools.Product Highlights Three-dot tritium system with blacked-out rear for rapid, precise alignment Orange Ember photoluminescent front ring enhances daytime visibility and glows in low light Suppressor-height sights designed to co-witness with many pistol red dots Wide rear notch (0.170 in) and 0.145 in front blade for improved front sight visibility Durable steel construction with matte black finish; made in the USA Specs Compatibility: HK VP9 Optics Ready Sight Configuration: 3-dot tritium; brighter front lamp vs. rear lamps; blacked-out rear Front Ring Color: Orange photoluminescent (Ember Glow Dot) Front Blade Width: 0.145 in (3.68 mm) Rear Notch Width: 0.170 in (4.32 mm) Height: Suppressor height; lower-third co-witness with many optics (e.g., Trijicon RMR) Material/Finish: Steel, matte black Installation: Sight pusher or hammer and punch Country of Manufacture: USA UPC: 647533023450 MPN: HK-R022P-6N Brand: XS Sights Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.