

Okay, let's take this from the top:
1. Person A is NOT a criminal .... no DUI or DWI arrests, no illegal drug use/selling/possession arrests, no public or domestic disturbances, pays their bills on time, pays taxes. Not so much as even a parking ticket.
2. Person B is a criminal with a rap sheet .... did time, finished their parole.
3. Person B cannot by law own a gun .... BUT their friend, Person A can. They both live in a state where the gun laws are considered very lax as compared to other states. In state #2, it is a high standard for a citizen with no criminal record to obtain a gun license.
4. Person A buys one or more guns, legal by state law. Since there is no requirement for a private sale of said gun(s), Person A can sell to Person B to be registered, so the gun can change multiple hands before getting to Person B.
5. Person B travels to relocates to another state, smuggling the guns (which can be smuggled also by Person A for the transaction). In state #2, he (and possibly an accomplice) commit crimes with guns they could not get in that state even if they didn't have criminal records.
6. Look up the phrase "iron pipeline" and how it relates to various states and gun crimes.
Got that?