- You cannot add another "Trijicon, used, Model TA31F-G, 4X magnification, .223/5.56mm calibrated, fiber optics light tube, tritium backup, green chevron reticle, Bindon Aiming Concept, bullet drop compensated to 800 meters, ARMS Quick Detachable mount, original box. This is an American manufactured, top quality, very bright, rugged optical sight, that you can bet your life on." to your cart. View cart
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