Definition of what's an 'assault weapon' is a very contentious issue
Assault Rifles and Concealed Handguns at Center of a Changing Industry - The New York Times
A Brief History of the Assault Rifle - The Atlantic
How to Use an AR-15 - YouTube
How the AR-15 Became Mass Shooters' Weapon of Choice – Rolling Stone
Rifle Sling Positions: Low and High Carry -The Firearm Blog
3D animation shows the inner-workings of an AR-15
Inside the rise of AR-15-style rifles in America - ABC News
Why Some Members of Congress Are Wearing AR-15 Pins | Time
U.S. Supreme Court throws out rulings upholding gun restrictions | Reuters
Assault rifle | Definition, Examples, Facts, & History | Britannica
Republicans criticized for wearing 'despicable' assault gun pins after mass shootings | KFOR.com Oklahoma City
Photo of Man With Semi-Automatic Rifle in Starbucks Line Sparks Debate Over Public Firearm Safety
Rifle Sling Basics: Operation and Options | An Official Journal Of The NRA
How to Shoot an Assault Rifle - wikiHow
How to set up a Tactical Gun Sling for Military – Reconbrothers Blog
Once Banned, Now Loved and Loathed: How the AR-15 Became 'America's Rifle' - The New York Times
Assault weapon - Wikipedia
How to Use a Rifle Sling to Shoot Better - The Truth About Guns
How to set up a Tactical Gun Sling for Military – Reconbrothers Blog
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M4A1 | Navy SEALs
A Brief History of the Assault Rifle | RAND
US Army's new assault rifle coming to gun stores | wusa9.com
Republican Lawmakers Wear Assault Rifle Pins - YouTube
Discovering the Weapons Used in Basic | Military.com
America's rifle: Why so many people love the AR-15
