Which means, if you have a private sale, I'd make sure I issed a receipt and keep my copy.
And why do you say that? There is no legal reason for any record of a private transaction. If by some very very remote chance that a weapon that you previously owned is improperly used...They ask, and you tell them...I sold it...It is not for you to prove you sold it...it is for them to prove you did not, (if tehy want to waste the time)
How come so many on these firearms forums do not understand "innocent until proven guilty" It is a fundamental principle of law in our country.