I have a flattop AR carbine I am accessorizing. I would like to mount a scope on it with quick detachable rings. I would also like to have a folding rear sight on there at the same time. Is this feasible? I went to a local shop today and the guy behind the counter did not really have an option for me. We could not figure out a way for there to be enough room for both. I do not want to mount the scope on top of the carry handle.