Stick a pin in this one because it isn't a walk in the park. It's not so much a single myth as bad assumptions and misinterpretations of good information. Caleb and Steve sort it all out for us!
Gear Guide: Great Ways to Trick Out Your AR-15 - Guns and Ammo
Stephen A. Congelli - Baker Swan Funeral Home
Smyth Busters: Do I Have To Download My AR-15 Mags?
Fixing the AR walking pins
Bazooka - Wikipedia
Every Part Counts - Armaspec Anti-Walk Pins
Which is better as a CA Compliant AR/AR alternative - the Fightlite SCR, the Smith and Wesson M&P 15 sport, or the Ruger Mini-14? For general use, not competition for long range
Smyth Busters: Does Your AR-15 Need Anti-Walk Pins?
CapChat: Guns, Guns, Guns
Postcard, Arkansas-Missouri Power and Ice Company Circa 1920s