Our take: The AIM Sports Tactical Dual Illuminated Red/ Green Dot Reflex Sight unit features four different aiming reticles giving you a truly unique and customized sight picture. This sight also features adjustable brightness levels, suitable for any lighting environment. This reflex sight is constructed entirely of high grade aluminum, providing added durability and an aggressive tactical look. This AIM Sports reflex sight is designed for ultra-fast target acquisition, quickly painting your targets with a bright dot reticle and keeping you on target! This Red Dot sight is extremely useful as a stand-alone optic due to its compact size and the crisp clarity of the red dot. One of the advantages of this high quality optic is that it allows you to accurately aim at your target with both eyes open. This type of reflex ighting system is perfect for fast paced scenarios, when quick and accurate shots make all the difference!