TexasCHLforum.com

I did some research for you.

http://pe.usps.com/text/dmm300/601.htm#wp1065406

In general:

Handguns are not mailable except when both parties are dealers and/or manufacturers, or when the recipient is a crime lab (and a few other rare exceptions).

As for rifles:

11.3 Rifles and Shotguns

Although unloaded rifles and shotguns not precluded by 11.1.1e and 11.1.2 are mailable, mailers must comply with the Gun Control Act of 1968, Public Law 90-618, 18 USC 921, et seq., and the rules and regulations promulgated thereunder, 27 CFR 178, 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 gun is unloaded and not precluded by 11.1.1e. [C024.3.0]

I don't have time right now to delve into the cites, but I recall from previous research that long guns are mailable intra-state between non-licencees. I don't think it's specifically allowed; rather, it's not prohibited.

IANAL, and all that jazz.

Kevin

USPS will accept long guns (no handguns) for in-state shipment between non-FFLs, but be prepared with the regulations, be prepared for a fight, and be prepared to have to go up the chain of command.

An FFL is never required on the sender's part, only the recipient.

Kevin