The Trijicon HD XR Night Sight Yellow for Glock is designed to deliver superior target identification and faster engagements at extended distances, building on the proven HD Night Sight platform with an even thinner front sight post that expands your field of view while maintaining precise co-witness alignment. Specifically engineered to fit Glock models 20, 21, 29, 30, 36, 40, and 41including S and SF variantsthese sights provide the reliability and clarity law enforcement and demanding shooters rely on in mixed lighting conditions. The green tritium lamps offer long-lasting visibility, with a 12-year warranty from the date of manufacture, ensuring dependable glow when illumination is scarce and enabling quicker, more confident shots when it matters most. By combining the XR design with high-contrast color options, shooters can quickly acquire targets, identify hits, and execute engagements with improved accuracy across a range of lighting environments. Trijicons commitment to durability and performance makes these sights a compelling choice for serious handgun shooters seeking an edge in accuracy and speed.