A look at the AR-15 style, semi-automatic weapons used in many mass shootings: Part 2

ABC News’ Matt Gutman travels to a gun show in Harker Heights, Texas, to investigate the debate on raising the minimum age to buy an AR-15 style rifle from 18 to 21 years old.

Our goal is to create a safe and engaging place for users to connect over interests and passions. In order to improve our community experience, we are temporarily suspending article commenting