Assault weapon - Wikipedia
How many AR15 style rifles are owned by civilians in the United States? - Quora
The Best Semi-Auto Rifles By Caliber
Just 3% of Americans own 50% of the country's guns
Definition of what's an 'assault weapon' is a very contentious issue
How many assault rifles are in America? - Quora
Publications
How many fully automatic weapons are in the US? - Quora
What Percentage of Americans Own Guns?
PDF) Violent Entanglements: The Pittman-Robertson Act, Firearms, and the Financing of Conservation
How the U.S. Compares to the World on Guns, Best Countries
The Best Semi-Auto Rifles By Caliber
The demographics of gun ownership in the U.S.