Gentlemen, forgive me for referring to the other sight about this issue, but I haven't had a chance to sign up for that site yet to get a response there. I also figure you guys can help me out just as well.
I am having this specific thing happen:
http://www.ar15.com/forums/topic.htm...=452870&page=1
The issue is my brass is bouncing directly off the sharp edge of the deflector (which I realize is there for this purpose of "deflecting" the brass). The brass seems to be deflecting right at the 5 o' clock position. This puts a small ding on my brass in between the neck and base perpendicular to the cartridge axis (see pictures in the above ARFCOM archived thread link). Anyway, This was the first 60 rounds on a brand new CMMG upper. Extractor has the black insert.
I happened to have a BCM extractor spring upgrade kit that I installed and also included the O-ring after realizing my brass was dinged this way. I have yet to test it with the upgrade. My question is, will this likely solve my problem, or will I also need to further tune it by messing with the ejector spring, or adding a heavier buffer or stronger buffer spring? It's not a huge deal, but I figured anything I can do to prevent the brass from wearing all the finish off that part of my deflector would be nice.


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