OHHLION 551 Metal Holographic Bright Green & Red Dot Sight

Exquisite Technology: Adopts high transmittance lens and the latest design technology to ensure a clear vision, and shooting the aim without any shaking. Superior Material: Equipped with shockproof and weatherproof materials, as well as metal frame, which will guarantee the sight can be used in severe environment. Easy to Use: The reticle color can be changed into red or green dot with one switch. There are 10 levels of brightness settings. Battery Features: Powered by an LR44 battery that can be performed for a long time. - easy to set up. Versatility: The sight is suitable for any 20 mm tactical rails.