Originally Posted by therukh
"...bought a few AR lowers the other day..."
This is just a guess, but in some states multiple sales of any gun or, in your case, AR lowers, might have triggered a flag. Multiple sales often are seen as intent to distribute and law enforcement is often interested in such.
That is very possible, didn't even think of that. However with people buying 10+ lowers at a time right now due to the possible AWB, I don't think the 3 I got should be a problem.
With that said, I'm going to wait a while before I go through another NICS check just to be safe. My father-in-law is sending me a revolver (from out of state, so it has to go through a FFL), but I'll have him hold off at least a couple of weeks.