Originally Posted by Bruce
I'm aware that the firearm has to go to an FFL, but the FFL isn't selling anything. He is only receiving the firearm per U.S. law. The buyer isn't "importing for sale" etc, but for his (or her) own use.
The FFL is regarded as making the sale if he's bringing in a gun for you. The handwaving of you mailing the money to the dude in Nebraska or Texas is just, um, handwaving: the CA FFL is the gatekeeper, the "nexus".