BumbleBug said:
It looks like reading the USPS reg's several times its all OK.
You may want to reread Section 43 of Publication 52 very carefully. I wrote much of the USPS discussion in the stickied thread on "How to ship firearms," and some of the regulations in Publication 52 are counterintuitive, particularly if you try to think in terms of ATF regulations. It's best to clear your mind of "ATFisms" and try to read the postal regulations purely at face value.
In terms of shipment by a non-licensee (i.e. a non-FFL), the USPS broadly classifies firearms into 2 categories: "Rifles and shotguns" (Pub. 52 § 431.4) and "Handguns" ("Pistols, revolvers, and other firearms capable of being concealed on the person" - § 431.2).
There is no problem shipping rifles and shotguns, provided that the barrel length and shoulder stock requirements are met. Per § 432.3:
Except under 431.2, unloaded rifles and shotguns are mailable.
Per § 432.2, "Handguns <and Other Concealable Thingies>" may only be shipped between FFLs and certain LE/military/security/gov't agents ["...the parties listed in this section"].
Publication 52 contains a definition for antiques in § 431.3 that is superficially similar to the familiar 68 GCA definition, but it does NOT have the same ramifications because
the USPS does NOT broadly exempt legal antiques from (almost!) all regulations like the ATF does.
Notably, § 432.2 says this:
Handguns and other firearms capable of being concealed on the person are nonmailable unless mailed between the parties listed in this section [i.e. NOT non-licensees]... b. Firearms meeting the definition of a handgun under 431.2 and the definition of curios or relics under 27 CFR 478.11 may be mailed between curio and relic collectors only when those firearms also meet the definition of an antique firearm under 431.3.
Read this carefully.
This is the ONLY place where Publication 52 relaxes a postal regulation when the firearm is a legal antique. In order for an antique handgun to be lawfully mailed, both the sender and recipient must hold at least an 03 Collector FFL (aka C&R license), and the handgun must be BOTH a legal antique under § 431.4 AND be C&R-eligible under 27 CFR § 478.11. Generally speaking, new-made replicas are NOT C&R unless they were manufactured more than 50 years ago.
Keep in mind that
U.S. postal regulations carry the force of law, and you may be surprised at the harshness of the penalties for many violations. If you bust a FedEx or UPS rule, generally the worst thing that's going to happen is they might ban you from future shipments and refuse to honor your insurance claim if the item was lost. Not so with the Post Office!
If I were you, I would ship UPS or FedEx. It's been a while since I read their tariffs and I strongly recommend that you do so, but the last time I read them, they exempted antique handguns from most of the onerous requirements that apply to modern handguns.
Mandatory disclaimer: I am not an attorney, nor do I play one on TV. This is not legal advice. Caveat emptor and YMMV.