When Brightness Counts The TRUGLO 30mm Crossbow/Gun Red Dot Scope is the perfect sighting system for your crossbow/Gun. This scope features 3 Red Dot reticles. This sight comes in a black finish and uses CR2032 batteries. The TRUGLO crossbow/Gun Red-Dot sights have click windage and elevation adjustments. Adjustable rheostat for brightness control. Integrated Weaver-style mounting system. Includes all the award-winning features of our Traditional Red-Dot Sight Series