I have been shopping around for an AR15 for 3 or 4 weeks now. They have been hard to come by. I thought a thread should be started to help those who were looking was in order. If you find a shop that has some post a reply in this thread.
A "pallet load" as the guy behind the counter described it is expected at http://www.haguesgunrange.com/
on 1-29 or 1-30-2013. Hagues is in south jersey in West Deptford. I was able to purchase one today (1-26-2013) and they will call me when they are in the store. They are Windham Arms AR15 in 5.56 flat top (that is they have no sights on them) optic ready. They do have a display of the exact model if you want to get a feel and look of the gun. It should go without saying but they are NJ compliant.
Hope this helps someone in the South Jersey area. Keep the thread going to help out others.