I've got a M4 flattop that I want to put an iron site and a 4x scope on. I'm thinking of picking up either a DPMS BUIS or an ARMS #40.
I'm leaning towards the DPMS because of the cost, but I like the ARMS because if I ever get the cash to do the EOTECH, I could then take advantage of the flip up site. (I think)

Would the DPMS work with some see through mounts? Has anyone done this setup before? Let me know thoughts and suggestions.

Thanks in advance.