No, I started off by ordering a 9mm upper receiver. Instead of a real 9mm upper receiver (no forward assist) as pictured on their website, they sent me a regular A2 upper receiver. I returned it, but they would only give me credit towards another purchase. Since I had been wanting a 5.56x45 SBR, I ordered a 10.3" 5.56x45 upper half, receiver, and buttstock from them (all but the LPK). Unfortunately, they had an incorrect barrel profile picture on their website. They didn't send the one pictured, but rather one that was significantly heavier. The resulting rifle was very front heavy. It took a couple of months and many calls to get them to correct this. They actually had to reprofile the barrel. After going through all of this, I just did what I had to do to get it running. The whole thing was such an ordeal that I was pretty sour by the time I got the reprofiled barrel back from them. I just couldn't stand the thought of going through anything else with them. I think that they just had more business than they could handle at the time. Hopefully they've improved their customer service since then. I need to clarify about the PRVI M193. It throws the spent brass out 100%, but the carrier doesn't lock back after the last cartridge 100% of the time.
http://img534.imageshack.us/img534/7...tviewafter.jpg
BTW, I ended up getting a factory Rock River 9mm SBR that is awesome, so I'm happy that things didn't work out with the CMMG 9mm AR15.