Can anyone help me with putting sights on a DPMS 5.56 Oracle? It has the lowered gas block. Will the Midwest AR Series Emergency Rear Sight (MCTAR-ERS) have an accurate elevation level when used with the Midwest Front Flip-up Sight for Gas Block (MCTAR-FFG) on the Oracle? I see people using the front sight I mentioned on the Oracle on YouTube however they have other brand rear sights like MagPul. If these Midwest sights will work together can I adjust the elevation on them?