The tritium inserts glow continuously for up to approximately 12 years, ensuring the sights are always visible and ready for use. An adjustable rear sight allows for precise windage and elevation adjustments, enabling shooters to fine‑tune accuracy based on ammunition or shooting distance while the front sight remains fixed. The three‑dot sight picture remains consistent in appearance day or night, allowing for fast, instinctive target acquisition. Constructed from durable steel and high‑quality tritium, these sights are built to withstand hard use and demanding environments. Overall, the Mepro Tru Dot Self Illuminating Adjustable Night Sight is a reliable upgrade that enhances accuracy and visibility for defensive, duty, and range use without relying on batteries.