Built on decades of military innovation and expertise, Meprolight has established its tritium technology as the benchmark for tritium illuminance. The Mepro Hyper-Bright family of pistol sights sets the standard against which all tritium pistol sights are measured. Utilizing a specially formulated manufacturing process, Meprolight offers an industry-first brightness that performs brilliantly from broad daylight to complete darkness and everything in between. The Mepro Hyper-Bright fixed Day and Night Sights deliver the most reliable illumination, ensuring optimal visibility in any lighting condition. Featuring an exceptionally bright contrast-colored ring, these sights enable fast and accurate target acquisition during the day. In low-light and no-light situations, both the front and rear tritium sources emit a vivid green glow, instilling confidence when it matters most. The premium Swiss-made tritium vials in both front and rear sights guarantee reliability in challenging lighting. Designed for intuitive use, the U-notch on the rear sight naturally directs your eyes to the top of the front sight, enhancing accuracy. The Mepro Hyper-Bright sight sets are engineered as direct upgrades to factory sights, ensuring compatibility with all holsters. Built to withstand the rigors of use, these sights are drop-proof, shockproof and crafted for maximum durability, providing unwavering performance under any conditions. Their ultralight steel construction, combined with a snag-free design, allows for a quick and smooth draw, giving you confidence in any environment. Importantly, Mepro Hyper-Bright sights require no batteries, ensuring they are always on, always ready 24 hr a day, 7 days a week, 365 days a year. With a guaranteed tritium illuminance for 12 years and maintenance-free operation, installation is straightforward, requiring no modifications to your factory slide. One last remarkable feature: the extraordinary brightness of Mepro Hyper-Bright sights enhances both eyes' dominance, improving overall targeting efficiency.