It’s the defacto creation of a gun registry. There is only one thing that happens once a gun registry is created. I’m not ok with background checks, they don’t stop crime and they are an infringement on the 2nd amendment.
I am never a fervent supporter of anything which controls ownership of guns. Gun ownership is best method to avoid dictatorship.
However there are too many guns in criminal hands. And there has to be a way to restrict convicted gun criminals from owning more guns. I see nothing good in allowing a bank robber, a drug peddler, a rapist using gun to threaten the victim, etc allowed to freely buy more guns using the prerogative of 2nd Amendment.