Works well at deflecting gas - CMMG, Inc Ejection Port Cover Kit w/ Gas Deflector

I installed this CMMG ejection port cover/gas deflector on a recent AR9 build and the gas deflection functionality works well since blowback 9mm is gassy. I had a bit of difficulty installing the rod as the gas detector sat too proud to allow for the rod to be inserted. So I had to file the deflector a bit, and after some trial and error, I was able to install it. It is nice and tight with no wobble. My AR-15 lower is Mil-Spec so others may not have the same issue.