Handguns are the firearms most likely to be illegally trafficked.
Inexpensive handguns are favored by illegal traffickers. The largest single source of illegal firearms in a state is likely to be from within the state itself. However, while proportions vary, many illegally trafficked firearms are from out of state. 1-95 along the East Coast has been referred to as the Iron Pipeline due to the large number of firearms trafficked along it, generally south to north. Significant Diversion to the Illegal Gun Market From FFLs.