sacramento calif. california assembly wednesday pass package gun control bill include measure ban so-called bullet button allow quick change magazine military-style weapon bill lawmakers push senate consider month among several gun control measure leaders house want pass advance gun control referendum head november ballot measure include ban so-called bullet button supporters say allow gun manufacturers bypass state prohibition removable ammunition magazines weapons own shooters december san bernardino massacre equip bullet button bill pass day university california los angeles campus shut wake murder-suicide shoot also pass bill allow employers co-workers mental health workers school employees ask judge ban someone possess gun year state already allow family members seek ban know gun violence restrain order relatives judge rule high risk commit violence others firearm spokesman firearms policy coalition immediately available comment last month california state senate pass package bill would prohibit possession large-capacity ammunition magazines require great scrutiny ammunition purchasers seek good keep gun hand violent felons lead senate democratic leader kevin de leon california senators rush pass gun control bill part defuse ballot initiative subject back lieutenant governor gavin newsom democrats legislature fear newsom measure centerpiece campaign far along initiative legalize marijuana draw republicans oppose gun control poll potentially influence race de leon endorse newsom announce plan 2018 say believe laws pass legislature nuanced easily adjustable instead create referendum second amendment advocate steadfastly oppose measure california assembly pass gun control bill