For anyone not in the US. 1. Having a gun without serial numbers isn't doing the current owner any favors, it's doing one for the previous owner (who in this c

For anyone not in the US. 1. Having a gun without serial numbers isn't doing the current owner any favors, it's doing one for the previous owner (who in this case sold it illegally to a felon). If anything it's detrimental to the current owner as it's going to raise eyebrows during an interaction with a LEO. 2. If you have a gun without serial numbers, etched off or otherwise, it's still illegal to transfer that firearm to a new owner. I'm not a law or a gun expert so take all that with a big grain of salt.