Got my repaired bolt carrier back from JT last week, complete with a $5.00 check to cover my shipping costs, much to my surprise.
It was in their hands less than a week.
Great service and quick turnaround! I will be buying an A2 upper from them as soon as I get my BM Dissipator upper sold.
BTW, I really like the muzzle brake that came on my post-ban M4 kit. It looks very much like the A2 flashhider. Does JT use this brake on all their postban uppers?