Got mine today, just after I finished cleaning my pistols and was getting ready to close up for the day! Well made, no flash.
Tom
ETA: I had to modify my rod guide as it worked well with my upper that is built on a USGI style A3 upper reciever, but would NOT fit in my upper that I got in the last Group Purchase built on a DPMS A3 style thick walled Lo Pro. I chucked it into my lathe and removed about .006 and now it works fine in both uppers. I'm not sure if I just got a tight GP upper, but it's always worked 100% with the DPMS carrier that it came with for 1.5k rounds and has worked fine for the last 1.5is k rounds with a Colt M16 carrier.
I never would have thought that there would be that much of a tolerance difference in the bore of an upper reciever, and I may just have one that is on the tight side. No big issue for me.