Designed for use on medium to heavy support weapons, this sight enables users to quickly bring a weapon on target, and greatly increases first hit probability. The Aimpoint MPS3 is a passive electronic reflex collimator sight. It is a rugged, parallax-free, 1x (non-magnifying) optic with unlimited eye relief. The MPS3 features an adjustable brightness red dot with 9 daylight and 7 night vision compatible settings, making it suitable for use in all light conditions and fully compatible with all generations of night vision equipment. The 2 MOA red dot is ideal for engagement of targets at all distances. The MPS3 sight is designed for use in extreme conditions, and able to withstand heavy recoil forces. Advanced ACET technology and an improved LED gives the MPS3 an 80,000-hour constant-on power using a single AA size battery. The brightness selection switch has also been redesigned for improved durability, and can be manipulated even while wearing gloves. Integrated rails on the top and side of the MPS3 sight allow for easy attachment of accessories such a laser aiming, white light or infrared illumination devices.