As has been made abundantly clear, the gun is illegal and it is a federal crime to have it, buy it, or sell it. And there is no easy way to make it legal. It's that simple. On the other hand, unless you are caught with it in your possession under adverse circumstances, or unless someday it is required to be registered, as some states require, there's little risk in keeping it at home. I just wouldn't advertise the fact I have it. Why was the SN obliterated? There is almost a 100% chance that it was stolen at some time.