BumbleBug said:
This is the receiver, bolt & trigger only (an action), but I had to go through a FFL when I bought it... As far using USPS, is it illegal or just un-insurable?
ILLEGAL. Unlike UPS/FedEx tariffs, US postal regulations have the force of law.
The reason it's illegal to ship receivers is explained in post #31 in the How to Ship thread, which I wrote.
Doyle said:
If they are from a long gun, then you just have to box it up and send it USPS.
This is incorrect. The postal regulations basically treat handguns, SBRs, SBSs, AOWs, PGO shotguns, and stripped receivers the same way. If it's a "firearm capable of being concealed on the person" under Pub. 52 431.2, only a FFL or "Authorized Person" (i.e. someone on a short list of military and gov't agents) may lawfully mail the firearm or receive it by mail.
In order for a rifle receiver to be mailed lawfully, it must be part of a "Rifle" pursuant to Pub. 52 431.4:
A rifle is a shoulder weapon having a barrel that is 16 inches or more in length... Rifles... have an overall length of 26 inches or greater and cannot be concealed on a person.
It cannot have a barrel that is 16 inches or more in length unless that barrel is in the package. Likewise, it cannot be a shoulder weapon without a stock.
The bits may be disassembled for shipment, but
the receiver, stock, and barrel must all be in the package.
That all being said...
The last time I checked, it was allowable to ship stripped receivers via UPS
Ground, which is comparable in price to the less expensive USPS services. However, it's been quite a while since I checked, so I would strongly recommend verifying this.
Furthermore, if sending back to Brownell's rather than shipping within TX, I recommend asking Brownell's if they will accept delivery of a shipment from a non-licensee, and if so, what procedure to follow. Many FFLs will not accept random deliveries from non-licensees because (a) FFLs are required by the ATF to log deliveries a certain way, and this is difficult to impossible if the person's identity cannot be verified from the shipping label and package contents; and (b) they don't want to be stuck holding the bag if the firearm is illegally modified.