TruGlo Tactical Red-Dot Tru-Brite Open-Dot Mutli Reticle - TG8380BN. A convenient and easy-to-use rapid target acquisition accessory for serious shooters, the TruGlo Red-Dot Tru-Brite open dot scope has a lightweight, compact design and wide field of view.- 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. Unlimited eye relief. Water- and shock-resistant. 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. Three-volt CR2032 battery included.