There have been about .6 new firearms added to the private stock for every NICS check done over the past 15 years.
I can not believe that statement. Where does it come form? Those that I talk to do not do a background except to buy a gun. It seems to me that most people find a gun they want and then get a background check. I never saw someone get a background check to see if they could get a gun. With more women buying guns I can not see them starting a gun purchase, get a background check and backing out after the check. Criminals and black market do not do background checks.
The ATF keeps records of guns manufactured, guns imported, and guns exported.
The FBI keeps records of background checks. Background checks are done for carry permits, and they are done for used guns.
The number of new guns is calculated as gun manufactured for the U.S. market, not including for the military, plus imports, minus exports.
When that number is compared to FBI background checks recorded by NICS, it comes to .6 new guns for each background check.
An NICS check is done when you apply for a CCW license. It’s also done when a used gun is bought. The stat is the ratio of NEW guns bought divided by total NICS checks.