Designed to work with optics, not suppressors, the Night Fision Optics Ready sight blade heights offer the perfect co-witness tailored to the shooter's preference. Serrated for low-glare, you'll never know they're there until you need them. Optics Ready sights are designed to be paired with pistol optics and offer approximately a lower 1/3 co-witness. FeaturesSerrated for low-glareLower 1/3 co-witnessSteel sight body