Nudge, I don't agree if you look at the regulation that you stated, it say's, Express mail, Registered Mail or Insured over $200 so that a signature is required.
USPS regs.
12.2 Rifles and Shotguns
[Revise renumbered 12.2 as follows:]
Except under 12.1.1d and 12.1.2, unloaded rifles and shotguns are mailable. Mailers must comply with the rules and regulations under 27 CFR, Part 478, as well as state and local laws. The mailer may be required by the USPS to establish, by opening the parcel or by written certification, that the rifle or shotgun is unloaded and not ineligible for mailing under 12.1.1d. The following conditions also apply:
"a. Subject to state, territory, or district regulations, rifles and shotguns may be mailed without restriction when sent within the same state of mailing. These items must bear a “Return Service Requested” endorsement, and must be sent by Express Mail (“signature required” must be used at delivery) or Registered Mail, or must include either insured mail service (for more than $200) requiring a signature at delivered."
So I think USPS just wants to make sure that the package is signed for and not just dropped on the porch of a house. At least that's the way I read it.
