The tools of modern terror: How the AK-47 and the AR-15 evolved into rifles of choice for mass killers

Time and again it's the same. A lone gunman or a small group of killers with rifles commits spectacular crimes that seize the attention of the world.

Research Article Archives - Journal of Mass Violence Research

AR-15: History, misconceptions, and the truth

Firearms Module 8 Key Issues: Firearms as Evidence

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It's the weapon of choice for U.S. mass murderers: the AR-15

Roller-Delayed Revival: The Heckler & Koch SP5K

The Gun: The AK-47 And The Evolution Of War by C.J. Chivers

The Gun Industry in America - Center for American Progress

AR-15-style rifle with armor-piercing rounds found in Tower District, man arrested, police say

How the AK-47, AR-15 Went From Military Weapons to Tools of Modern Terror – AHumbleSoul

Firearms History and the Technology of Gun Violence – UC Davis Library

For Those Wondering, The AK Model In This Game Is The Go To, 57% OFF

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Texas mall shooting: A grim history of AR-15s and American tragedies : NPR