There are 2 M1A rifles floating around out there somewhere (this was probably around 2005) courtesy of FedEx Ground. They were sent by AcuSport from Billings, MT. I never got them so never paid for them or had to worry about reporting lost firearms. But I never heard a word from anyone. As far as I know, they're still on a truck somewhere.

And ATF isn't gonna care as long as the paperwork's filled out. Fill out this form, fill out that form. It's not like this doesn't happen practically every day somewhere. They won't drop what they're doing and go look for a lower receiver that didn't show up somewhere. This thread is about as much attention as your lost receiver will get.

Have your credit card company credit your account and reorder a receiver.

Sometimes, a lost package isn't due to something really sinister or evil or anything like that. Labels occasionally fall off and packages get thrown in a bin/area for undeliverable packages. Had that happen, too. The person who shipped it said there was a distinctive mark on the box and he gave me an accurate description. I was able to relay that info to a person at the UPS hub and they found it in their undeliverable package area. It was on the truck for delivery to me the next day. With the number of stuff they deliver this time of year it's amazing more isn't lost.