The Tru-Brite Dual Color Multi-Reticle red dot sight offers two choices of reticle color for contrast against any target or background (red or green), and four reticle patterns (2.5 MOA dot, 5 MOA dot, 20 MOA circle with 2.5 MOA center dot, 45 MOA circle with 5 MOA center dot) for accurate targeting in any shooting condition. It also has an adjustable rheostat for brightness control, unlimited eye relief, click windage and elevation adjustment, anti-reflection coating on target side, integrated Weaver-style mounting system, and includes 3V-CR2032 battery. It is parallax-free from 30 yards.