XS Sight Systems Minimalist sights are simple, low-profile backup iron sights that maximize visibility through your optics window and eliminate the need for height calculations, giving you the perfect co-witness out of the box. The rear sight features blacked-out serrations to minimize glare. The anti-glare, blacked-out rear has a wide notch to draw your eye to the front sight. The front sight is equipped with tritium in the center, surrounded by our glow dot technology. The glow dot is photoluminescent, so it absorbs ambient light to provide a gentle glow in low-light conditions. FeaturesBlack Nitride surface treatment - enhanced corrosion resistanceLow co-witness - low enough to avoid distractions in the optic windowTritium front sight - low light visibilityGlow dot - absorbs ambient light and glows in low lightBlacked out serrated rear - reduces glare and distractions