The 4-16x40mm Varmint AO IR Mil-Dot Rifle Scope by Barska has been designed to provide pin-point accuracy and rugged durability that you can depend on. Whether at the range or on the hunt, the 4-16x40mm Varmint AO IR Mil-Dot Rifle Scope with Rings puts your shots on the target with its precision optics. An illuminated red/green Mil-Dot Reticle can be adjusted to different levels of brightness, which allows the user to get a precise aim and to adjust illumination that is ideal for the time of day. Fully Multi-Coated Optics help reduce glare and increase light transmission, resulting in an extremely clear image.