Vortex Optics Viper Red Dot Sight - 6 MOA Dot The Viper Red Dot Sight has a super low-profile making it perfect for handguns with cut-out slides. The Viper's low height allows it to co-witness with iron sights and the 6 MOA dot is easy to pick up and get you on target fast. Power and illumination controls are easy for shooters to access and adjust. The fully multi-coated, ultra-clear lens offers a wide, unobstructed field of view while Armortek coatings protect your lens from oil, dirt, and scratches. Hard anodized finish- highly durable low-glare matte finish. 1 MOA windage and elevation adjustments move the dot to your point of aim. Waterproof and shockproof construction ensure your Viper Red Dot is ready for all conditions.