Enhance your Glock with the Tritium Rear Sight, featuring a green tritium illumination with two-dot design and black outlines for improved visibility and alignment in low-light conditions. This rear sight measures .256 inches in height and features a square notch width of .165 inches, providing a precise fit and optimal performance. The dual-dot configuration allows for quick sight alignment, ensuring a fast and accurate target acquisition. The black outlines further enhance contrast, making it easier to focus on your front sight. Designed for reliability and durability, this Tritium Rear Sight is an excellent choice for shooters seeking to improve their accuracy and performance in various lighting environments. Upgrade your Glock with this high-quality sight solution for enhanced shooting confidence.