The Patent Pending VISM Flipdot Reflex Optic folding red dot reflex lens folds down flat when not in use. With a push of a button it flips up and automatically turns on while folding down turns the optic off. The 3 MOA Red dot is fully adjustable for windage and elevation. Integrated into the body is a backup rear sight and on the bottom of the lens frame is a backup front sight post. The FlipDot backup iron sights function when the lens is deployed in the up position through the glass lens. Includes a Glock MOS compatible mounting plate MOS mounting screws 2mm optic spacer for RMR mounting applications Glock Rear Sight Dovetail Base Picatinny/Weaver Mount/CR2032 battery optics cover and mounting & adjustment tools.