As far as the claim that AR-15s are “not viable for home protection,” The Washington Free Beacon pointed out that The Daily Signal delineated in March 2018 eight separate incidents in which an AR-15 was effectively used for home or business protection: a 2013 incident in which a 15-year-old boy defended himself and his 12-year-old sister from two home invaders; another incident in 2013 in which a college student’s unloaded AR-15 scared off two armed burglars; a 2014 incident in the Ferguson, Missouri riots in which only one business survived the onslaught in a 2-square mile radius because men guarded it with an AR-15; a 2017 incident in which a target of a drive-by shooting used his AR-15 to ward off an attack by three armed men; another 2017 incident in which a 19-year-old boy defended his home from three invaders; a third 2017 incident in which a man near a church in Texas forced a shooter to flee; a 2018 incident in which a man stopped an attack a man armed with a knife was about to commit against a pregnant woman, and another 2018 incident in which a man used an AR-15 to stop a threat from a relative of three robbers who had targeted the man’s home.
https://www.dailywire.com/news/48502/dianne-feinstein-attacks-ar-15s-op-ed-she-tells-2-hank-berrien