I routinely ship via FedEx 2nd day. I always declare that it is a firearm (as required). The last 2 revolvers I sent out, the return address is my home address. FedEx was checking that the shipper (me) had an FFL. Today, I remembered to take a copy of my own license. The clerck checked that my FFL address matched the return address. No problem. But, I am not sure about someone without any license shipping via FedEx if you declare it is a firearm?? Also, I always insert the recipient's FFL copy in the plastic sleave containing the label and inform the cherk.