Six days after a gunman murdered at least 50 people at two mosques in Christchurch, New Zealand, Prime Minister Jacinda Ardern effectively banned the sale of AR-15s and all similar assault rifles Thursday afternoon. "Related parts used to convert these guns into [military-style semi-automatics] MSSAs are also being banned, along with all high-capacity magazines," she said. These changes will require legislation, and Ardern said she expects the bans to be enshrined in law by April 11, with a buy-back program put in place afterward. In the meantime, the government has immediately reclassified "virtually all" of the weapons she mentioned so purchasing them now requires a special permit from the police.

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