It appears that you can no longer ship via FedEx unless you are an FFL. Updated September 20, 2021
Page 125
https://www.fedex.com/content/dam/fe...Guide_2021.pdf
"Firearms
Only customers holding a Federal Firearms License (FFL) and federal, state, or local
government agencies may ship firearms with FedEx. Customers holding an FFL must enter
into an approved FedEx Firearms Shipping Compliance Agreement before shipping any
firearms with FedEx. For more information, contact your FedEx account executive"