Or should I say AN upper. I sent my upper back to Spikes for what I thought was a canted front sight. You can see my post here http://www.ar15.com/forums/topic.html?b=3&f=118&t=511946    Today the big brown truck came and dropped off my upper. Spikes completely replaced my upper!! . I dont exactly know why but they did, at no cost to me! Im wondering if they built me a new upper or replaced it with a AR15.COM 2009 "SEBR" upper they had in the shop. I also wonder if they did build another one, does it still have a Daniel Defense barrel like the other one did? Thanks Spikes. I will be buying more products from you around December.