TRUGLO TruBrite Multi-Reticle Dual-Color Open Dot Sight n/a Imported Convenient and easy-to-use rapid target acquisition accessory for serious shooters Two choices of reticle color for contrast against any target or background; four reticle choices for accurate targeting in any shooting condition Adjustable rheostat for brightness control; click windage and elevation adjustment; 24-by-34-millimeter window for ultra-fast target acquisition Anti-reflection coating on target side; parallax free from 30 yards; integrated Weaver-style mounting system and three-volt CR2032 battery included Includes limited lifetime manufacturer's warranty