This is old, but it remains NRA policy. If you ever wondered whether or not the NRA is a death cult - this should clear that up.
NRA Opposes Bill Banning Terror Watch List Suspects From Buying G...

And yes, I know that some of the people on the list should not be and that it is terribly hard to get off the list...but even so, let's not sell them weapons.

This is from this year - as they continue their policy
Fritz Walker: Change rules so suspected terrorists can't buy...