I've been shooting xm193 IMI I believe. Cycles just fine with three other setups.
http://images.tapatalk-cdn.com/15/11...8ec4789ad9.jpg
I checked the gas system and blew it out with gun scrubber. I did not notice any cracks. The gas tube seems to be I contact with the BCG, but I should verify that.
Nathan, you have been awesome in support. I just haven't contacted Faxon directly yet. I'm not entirely sure it's a Faxon related issue.
Like I said, earlier, I've tried two lowers and three BCG's to verify that the problem stays with this upper.
Sent from my iPhone using Tapatalk