But you still have to (re?)register a gun when you buy from private party? Or not necessarily? I never owned one, so I don't know how the whole procedure of buying/selling works.
I couldn't remember so I grabbed this off google real quick from the New England Journal of Medicine..... MMS: Error
The link has the whole article.
" In 2007, a total of 12,632 people in the United States were murdered with firearms, and it is estimated that another 48,676 were treated in hospitals for gunshot wounds received in assaults. Guns are frequently used to commit crimes in the United States, partly because they are so easy to get. This ease of access, in turn, is partially attributable to the fact that there are two systems of retail gun commerce in this country, one involving licensed gun retailers and the other based on private-party gun sellers, and only the former of these systems is regulated. Some 85% of all guns used in crimes and then recovered by law-enforcement agencies have been sold at least once by private parties.
To buy a gun from a gun dealer or other federally licensed gun retailer, you must show identification. You must certify on a lengthy form that you are buying the gun for yourself and that you are not a member of any of several classes of people (including felons and persons under felony indictment, fugitives, domestic-violence offenders, controlled-substance addicts, persons “adjudicated as a mental defective,” and certain others) who are prohibited from purchasing or possessing firearms. A background check will be conducted. In more than 90% of cases, the check is completed within minutes, but if there is uncertainty you may wait up to 3 days to get your gun. The retailer must keep a permanent record of your purchase. If you buy more than one handgun from that retailer within 5 business days, the retailer must report the details of your purchase to the Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF).
However, under federal law you can also legally buy as many guns as you want from a private party, and none of those procedural safeguards will apply. Private-party gun sales can be completely anonymous and undocumented. Private sellers are not required to see identification or keep records, and they cannot initiate background checks. A brief negotiation over price, an exchange of cash, gun, and a handshake, and your purchase is complete. "
EDIT: Not sure why the link says error, but it works.