Meprolight M21 4/40 MOA Bullseye Day/Night Tritium Reflex Sight

Mepro takes red dot sights to the next level with the M21! This advanced sight was developed for the IDF, and is highly suited for close-quarters or in situations where the use of both eyes is critical. The M21 functions without batteries, and provides illumination with a system of fiber optics and tritium. The fiber optic collectors on the top and front of the sight illuminate the reticle in daylight conditions, while the self-powered tritium illuminates the reticle in the dark. Transition between the two illumination systems is seamless, and is always available without any switches or external sources of power. Features of the M21 Red Dot Sight: Functions without batteries Self-illuminated via system of fiber optic collectors and tritium No switches or external sources of power Meprolight USA Meprolight M21 4/40 MOA Bullseye Day/Night Tritium Illum Reflex Sight w/Picatinny Rail Adapter 0626132