Presumptive Republican nominee Donald Trump is reaffirming his stance on potentially restricting individuals on the terror watch list from being able to purchase firearms, a week after the worst mass shooting in U.S. history.

"We have to make sure that people that are terrorists or have even an inclination toward terrorism cannot buy weapons, guns," Trump told ABC News Chief White House Correspondent Jonathan Karl in an interview to air Sunday on "This Week."

Asked by Karl if his position is that those on the no-fly or terror watch list should not be able to purchase a gun, Trump responded, "I'd like to see that, and I'd like to say it. And it's simpler. It's just simpler."

In a tweet Wednesday, Trump announced he would meet with the NRA to discuss banning those on the terror watch list or no fly list from buying guns.

The NRA responded with a tweet saying they are happy to meet with the presumptive Republican presidential nominee, and that their position is "no guns for terrorists—period. Due process & right to self-defense for law-abiding Americans.”

Trump says he understands the NRA wants to protect the Second Amendment, and that creating a gun ban for those on the no-fly list may deny those individuals their Second Amendment rights without due process.

"Now, but what they say, and I understand that also, is the Second Amendment, they're depriving them of those rights. And that it could be that people are on there that shouldn't be on, you know, etc. etc.," Trump said.

“I’ll talk to them,” Trump added. “I understand exactly what they're saying. You know, a lot of people are on the list that that really maybe shouldn't be on the list and you know their rights are being taken away so I understand that.”

The NRA announced its endorsement of Trump in May at its leadership forum in Kentucky.