The TruGlo TG965R Rimfire Pistol Front Sight in Red/Fiber Optic is a bright, easy-to-install upgrade that replaces the factory front sight on most Ruger MKII, MKIII, MKIV, 22/45, and Browning Buck Mark rimfire pistols, delivering rapid target acquisition in low-light conditions. Built with a .060" fiber diameter and a precise 0.445" front sight height, this fiber optic front sight enhances visibility without adding bulk, helping shooters stay focused on the target during fast-paced shooting and hunting scenarios. Designed to fit Ruger MKII, MKIII, MKIV, 22/45, and Browning Buck Mark rimfire models, it provides a robust, reliable point of aim while maintaining compatibility with standard sight lines. Note that this front sight is not suited for Marlin hood front sight models, Ruger tapered barrel designs, 22/45 LITE models, or BuckMark contour variations, ensuring you select a compatible upgrade for your specific pistol. With TruGlos reputation for bright, durable optics, this front sight offers a crisp aiming reference, improved silhouette visibility, and a straightforward installation that helps you retain confidence at the line, on the range, or in the field.