Alabama Governor Kay Ivey signed into law a bill banning Glock switches and other conversion devices that convert semi-automatic weapons into machine guns.

Alabama has banned gun conversion devices that have the ability to convert semi-automatic pistols into fully automatic weapons. The conversion devices, sometimes referred to as Glock switches, are already banned under federal law,

The Birmingham mayor, who lost a brother and nephew in shootings, has expressed frustration over gun violence in his city. Police say the devices produce a rapid, hard-to-control spray of bullets that increase the number of casualties during a shooting.