The DI Optical EG1C prism gunsight provides a virtually parallax free reticle for increased accuracy and rapid target acquisition. It features adjustable illumination, two glare reducing hoods, rugged 6061-T6 aluminum body that is submersible up to 10 feet and a wide adjustment range in both elevation and windage. This is an ideal optic for AR-style platforms. It also has an easy grip rotary switch for brightness control DI Optical EG1C 65 MOA Red Dot Sight