MARS gun sight for AR-15/M-4 or M-16. This sight has the red dot aperture along with the night vision capability. Brand new in the box. I have checked it out and everything works great. I no longer plan on using it so I am looking to sell. This sight costs over $1600 new and I am asking $500 OBO. Trades for 2nd gen diesel performance parts also considered. Feel Free to call me with any questions, (812)219-4350 Caleb. Thanks.