This iron sight assembly comes with the bonus of a co-witness mount for your Aim-point, EO-Tech, or other red dot sight without needing a quad rail system. This system is from composed from USGI parts from some of my M-4 style rifles and I am just not using it. It has been mounted on a gun long enough to be shipped from the factory to me and then I removed it and put it in a box. I am doing a SBR build on one of my stripped lowers and need money for the parts. Everything you see in the pictures is what you get for the price.
I will ship it for free to your door via USPS.