Not while the gun owners are busy selling them guns in private sales.
Private sales are the smallest portion of gun sales. If you buy a gun with the intent of selling it, you are legally a dealer and need a license.
From an article about h9w the ATF operates"
Under the Gun Control Act, the ATF had wide latitude to pursue illegal dealing charges against unlicensed sellers. FOPA protected private dealers by narrowing the definition of just who qualified as being “engaged in the business” of selling guns.
A clause in the law made it clear that licensing requirements would not apply to “a person who makes occasional sales, exchanges, or purchases of firearms for the enhancement of a personal collection or for a hobby, or who sells all or part of his personal collection of firearms.”
Instead, only people who buy and sell guns “with the principal objective of livelihood and profit through the repetitive purchase and resale of firearms” would have to get licensed with the ATF.:
"
Under the Gun Control Act, the ATF had wide latitude to pursue illegal dealing charges against unlicensed sellers. FOPA protected private dealers by narrowing the definition of just who qualified as being “engaged in the business” of selling guns.
A clause in the law made it clear that licensing requirements would not apply to “a person who makes occasional sales, exchanges, or purchases of firearms for the enhancement of a personal collection or for a hobby, or who sells all or part of his personal collection of firearms.”
Instead, only people who buy and sell guns “with the principal objective of livelihood and profit through the repetitive purchase and resale of firearms” would have to get licensed with the ATF."
The ATF considers you a dealer if you sell multiple guns in a year, or if you buy them to sell them.