Residents of Boulder, Co., have until December 27 to “certify” their “assault weapons” or remove the firearms from city limits. Those who fail to comply could face fines, jail time, and confiscation and destruction of their firearms, according to the Denver Post. Boulder police say they have certified 85 firearms since the city council passed an “assault weapons” ban in May. Residents who already owned prohibited rifles, pistols, and shotguns were given the chance to keep their firearms by certifying prior ownership with police. The council also voted unanimously to ban “high-capacity” magazines and bump stocks. “My hope is that...