With XS SW-M002S-4N Minimalist Night Sights for S&W N Frame, the XS Sights Minimalist Night Sights are now available for K and L frame revolvers! These sights feature a tritium front sight with their high contrast glow dot, offering top notch visibility by glowing brightly in low light conditions. The high visibility front sight is paired with a non-tritium rear sight to upgrade your revolver sight picture. The serrated rear sight cuts down on glare and enhances the focus on the front sight. They CNC machine their sights in-house from solid steel bar stock.Features :Tritium front and rear with high contrast glow dotPhotoluminescent glow dot absorbs ambient light and glows in low lightBlacked-out serrated rear sight reduces glare and eliminates distractions from the front sightDurable CNC machined steel and fits standard holster optionsProudly manufactured in Fort Worth, TX