Iranians and gun store

my kid works at a local very large national chain gun store and the other day 4 individuals came into his store 1 at a time about 2 hours apart and huge bought an AK 47 and 500 rounds of ammunition HA of them made a cell phone call from the store before and after the sales and spoke in Arabic or Farsi or whatever it is. they all have what appears to be legitimate US citizenship papers but were all from iran, doj was notified. This was in socal so they have to wait 11 days to pick them up. Wonder if we could see problems here soon