The factory replacement sight blade kit is engineered for precision and compatibility with Smith & Wesson K frame, L frame and N frame revolvers. This rear sight blade, measuring .146 inches, features a white outline to enhance target acquisition and sight alignment. Manufactured in the United States, the kit ensures high-quality craftsmanship and durability. The design facilitates straightforward installation, making it an ideal choice for users seeking to maintain or upgrade their firearm's sighting system. This product is tailored to meet the exacting standards of firearm enthusiasts and professionals alike, ensuring reliable performance in various shooting conditions.