My office has received reports from ffl holders about 'suspicious' people who buy a number of guns at one time and the ffl holder feels the buyer is buying 'straw purchase' guns. The buyers tend to buy a number of the same type of guns, many are the cheap small autos like Jennings or other similar types, but have also been Glocks. The buyers also tend to be not from the town in which the store is located as well. A lot of small things that would make the seller be suspicious of the person.