Trump administration moves to ban bump stocks

A device called a 'bump stock' is attached to a semi-automatic rifle.
A little-known device called a "bump stock" is attached to a semi-automatic rifle at the Gun Vault store and shooting range Wednesday, Oct. 4, 2017, in South Jordan, Utah. The Trump administration is moving to officially ban bump stocks, which allow semi-automatic weapons to fire rapidly like automatic firearms.
Rick Bowmer | AP 2017