I ordered mine back in December and just received it 2 days ago.
I called RRA back in May, and was told they were on backorder for barrel blanks (or some such) with no ETA. RRA did call me last month on the 25th asking me if I still wanted it, which I did, and that it would be built and shipped within a couple of weeks.
I'm stationed on an aircraft carrier, so we're out to sea a lot, so I wasn't too concerned about the wait. I'm building an AR from a stripped lower, so one good thing about the long wait is that I was able to slowly acquire all the parts. Most of the parts I just bought within the last couple of months as a lot of stuff was out of stock for obvious reasons, so it all worked out in the end. One of the local shops here always had a good selection of ARs, but I wanted to build it myself.