I have had one of these uppers on order since march, I'll let you guys know how it runs when it arrives. Should be here mid june, as CProducts is making the mags for it, and they made some minor changes at the last minute pushing back the ship dates.
Meh, it was cheaper and faster to have Kurt at KKF make me a 5.45 AR barrel; I had him do a midlength 14.5" that I'm going to perm attach a phantom to. I've had it for about a month now, but have been too busy to build it into an upper.
Luckily, I can just buy another upper and throw that one on for practice, then keep the .223 upper on for when the zombies come. But i've got a pretty good stockpile of .223, enough to get me to the next nearest sotckpile if I'm trigger happy.