The Rival Arms RA3A231G Night Sights for Glock MOS deliver reliable low-light visibility with 3 Dot Green Tritium, featuring an Orange Outline Front Sight and a Green Tritium Black Outline Rear Sight designed for Glock 17/19 double-stack 9mm models. This Tritium sight set is tailored to fit all generations of Glock with standard height models that directly replace factory sights and fit in standard holsters, while MOS variants are specifically engineered to provide proper co-witness through an optic for Glock MOS slides and other slides mounted with optics. Built as a black-outlined, rugged handgun sight solution, these sights combine fast target acquisition with enduring brightness that remains visible in varying lighting conditions, enabling consistent aiming in dawn, dusk, or indoor ranges. The RA-RA3A231G is crafted to support precise alignment across front and rear sights, enhancing accuracy for daily carry, duty, or range use. With compatibility across the Glock MOS ecosystem and a clean, professional profile, these Rival Arms sights offer a practical upgrade that maintains a natural sight picture and seamless integration with existing holsters and setups.