Troy Industries Folding Tritium Battle Sight Rear (Flat Dark Earth)
Troy Rear Tritium Folding Sights    TRITIUM is a form of hydrogen that emits a continuous light source where using batteries or electricity is not possible. Target acquisition is made possible in low or no light conditions.    - No limited sight orientation due to low light conditions  - Front post is centered between two tritium points of reference to allow for proper alignment  - Flat Dark Earth    Note: Sight is designed to work on same plane rail systems only. Will not work with a railed gasblock that is higher or lower than the receiver.