cb I don't guess that I have ever heard of it done and it certainly isn't required. BUT in todays crazy world I can't say that it is a bad idea. I suppose in theory if someone wanted to cause alot of trouble just because they were bored they could sell you a firearm and then claim it was stolen and without a paper trail you would be hard pressed to prove otherwise. So for that reason alone when dealing with andindividual firearm transaction I would say it probably is a good idea. And if you wanted to get extra assurety I would go as far as putting both yours and the sellers thumbprint on the BOS as well.

Good idea,
RA