Cody Wilson is spearheading a method of firearm manufacture that allows absolutely anyone to build an untraceable gun by downloading gun designs and printing out parts on a 3-D printer.
A survivor of the deadly shooing in Aurora, Colorado says she's not for banning assault weapons. Farrah Soudani was grievously wounded by an AR-15 assault weapon.
"The AR-15 is becoming extremely popular among women," said Juliana Crowder, president and co-founder of A Girl and a Gun.
Many enthusiasts of the AR-15 rifle say it's great for hunting. CNBC tagged along on a feral hog hunt in Georgia.
To get a better understanding of the AR-15's immense popularity and go beyond the cliches, CNBC interviews Mike Barr, a dentist from Boynton Beach, Florida. When he isn't drilling a tooth, he's drilling a target with his AR-15.
Brian Schuetz, president of Olympic Arms, explains to CNBC's Brian Sullivan how seven pounds of metal and plastic come together to make the AR-15 work.
Check the U.S. TV schedule for upcoming show times.