Md. semi-automatic weapons ban in jeopardy after Supreme Court ruling - Maryland Matters
Shoot Full-auto Machine Guns at the Machine Guns Vegas Gun Range
Automatic firearm - Wikipedia
Army Announces 2 New Rifles for Close-Combat Soldiers > U.S. Department of Defense > Defense Department News
What is an 'assault weapon'? Lawmakers, retailers disagree on the definition as Washington Legislature considers ban | The Spokesman-Review
New Zealand Ban on Most Semiautomatic Weapons Takes Effect - The New York Times
Automatic rifle | weapon | Britannica
A Non-Gun-Owner's Guide to Guns – Mother Jones
WW1 automatic weapons by AndreaSilva60 on DeviantArt
Firearms - Guides - Importation & Verification of Firearms - National Firearms Act Definitions - Machinegun | Bureau of Alcohol, Tobacco, Firearms and Explosives