My worry is that he thinks some new background check along with red flag laws are just another meaningless bone to throw to the left.
“Find out just what any people will quietly submit to and you have found out the exact measure of injustice and wrong which will be imposed upon them, and these will continue till they are resisted with either words or blows, or with both. The limits of tyrants are prescribed by the endurance of those whom they oppress.”
Frederick Douglass
Sadly, I think Trump is woefully ignorant about firearms in general and the acquisition process through FFLs and Form 4473 that asks pointed questions, which, I believe, if you lie on the Form, has serious consequences. The FFL then calls the FBI for background and conveys The Who and what of the transaction.