Introducing the XS Sight Systems Pre-Drilled Front Sight for Smith & Wesson 586, 686, 625, 629. XS now offers a hand-polished brass bead; the convex face reflects more light than flat-faced factory or competitor offerings, allowing for the cleanest view and the best reflection of ambient light. Brass is less expensive and more durable than gold, and their bead is hand-polished with Flitz polishing products, leaving a light protective layer that will minimize oxidation. Brass does not replace tritium on an EDC revolver; their retro classic brass front sights are optimized for range or field use. FeaturesHand-polished, convex brass bead for best light reflectionClassic retro high-visibility front sightStandard Dot front measures 0.140" Durable CNC-machined steelKit Includes: front sight, roll pin(if applicable), red threadlocker, insert with instructions.