In March of 2019 , a Federal District Court judge struck down California 's high-capacity magazine ban , noting that " u nder the simple test of '' Heller '' , California 's § 32310 directly infringes Second Amendment rights " . Most Americans support a ban on the sale and possession of high capacity magazines . In 2012 62 % of Americans favored banning the sale of high-capacity ammunition magazines , according to a Gallup poll with a margin of error of / - 4 % . In 2017 65 % of American adults supported banning high-capacity magazines , according to a Pew Research Center survey with an error attributable to sampling of / - 2.8 % at the 95 % level of confidence . In late February early March 2018 , after the Stoneman Douglas High School shooting , 63 % of American adults supported a ban on the sale and possession of high-capacity or extended ammunition magazines , according to a CNN poll with a margin of error of / - 3.7 % . 73 % of American adults supported banning high-capacity ammunition magazines that hold more than 10 rounds , according to an NPR/Ipsos poll with a margin of error of / - 3.5 % . 70 % of registered voters supported banning high-capacity magazines , according to a '' Politico '' / Morning Consult poll with a margin of error / - 2 %
Stoneman Douglas High School shooting
Stoneman Douglas High School shooting
High-capacity magazine ban