Bulk Gun Purchases | Giffords
Regulating bulk firearm purchases is a straightforward, effective way to reduce gun trafficking and save lives.
Laws limiting the number of firearms a person can purchase within a certain timeframe help reduce the number of guns that enter the secondary market—weapons that are more likely to wind up at the scene of a crime. Only a handful of states limit bulk gun purchases, a policy that has been proven to reduce gun trafficking and consequently gun violence.
You are about to answer your own question.
ps Wise of you to drop the Australian suicide nonsense