Unintentionally making a private sell to a person who otherwise would have a failed a background check -- is a problem. I agree with the above post. This is only possible in some states (not all -- for example it is not possible in NC for handguns at least, but possible in FL) Yes, I know that in recent mass shootings the perpetrators did not obtain a firearm from a private sale without a background check. And yes, I realize that liberal media is using this specific issue as a preamble for the lie about '40% of guns are sold without background checks'. nevertheless, my view is that the specific issue needs to be closed. Methods to close it vary from issuing a separate from carry, a purchase license, to FFL only sales (which I would not support), to a hot line accessible to individual sellers.