The young man in the jeans and sunglasses proudly shows off his gun in the YouTube video, then instructs his 1 million subscribers how to fit an extra clip in his gun belt, and offers a chilling observation.
“Pretty cool for active shooter stuff, if you need extra mags.”
It’s a typical video, one of thousands teaching military-style training and tactics to civilian gun owners, offering instructions on silencers and grenade launchers, on…