For what it's worth...
I ordered a kit on Feb.21 (not the AEG), got a shipping notice on the 24th, it left NZ on the 27th, arrived in Canada on the 2nd and was delivered today. No customs charges either (bonus!).
So about seven business days (eleven days total) from order to delivery. I'd imagine it would be pretty similar for both Canada and the US, assuming it doesn't get tangled up in customs.