No---you're the stupid one. We already have background checks. Guns from private sales and gun shows are not responsible for much crime. In fact, zero mass shootings have been committed by guns purchased at gun shows etc.More stupidity on your part. Background checks are the only gauge we have in the US to estimate the amount of guns sold.
Your ignorance on this issue is not surprising.
For anyone interested, we in America truly have no idea how many guns get sold yearly or who is actually in possession of the guns. We have to guess using cobbled together statistics because the right wing refuses even the lowest levels of regulation.