Originally Posted by blume357
I was not promoting an illegal act... just offering what I thought was a legal solution.
No, you were promoting an illegal act. Doing what you would be illegal no matter what you thought.
As AB says, the loan exception under federal law is very narrow. In addition, the brother would commit a federal felony by violating 18 USC 922(a)(3) were he to take the "loaned" gun back home with him.