If you get hung up on a NICS check, the law says an FFL can release the gun after 3 days. They want to change it to no release at all unless FBI gives a clear proceed.
Charleston church shooter did not get a clear "proceed" but LGS released the gun after 3 days, per the law.
And that "proceed" is not a loophole.
It's so that they don't underman the department, and have gun control by just "waiting".