I’m currently running a NF Nx8 in low rings. No back up sights. I had a set of 45 degree offset Kac and magpul. Both Snagged on everything, so I took them off. This thing is a tackdriver and the NX8 is a good fit.

If, I had the folding adjustable stock, and the riser, I believe I could get away with HK height sights. Like Troy micros, or HK fixed sights. I may try one out next time I go by Tarheel State.