washington people would able bring legal conceal gun u.s. state legislation house representatives approve wednesday would also bolster national background check system require study bump stock use october las vegas mass shoot country long-standing fight gun ownership grow heat since single person kill 58 people injure 500 music festival las vegas nevada deadly mass shoot carry individual u.s. history stephen paddock boost firearms bump stock shoot thousands bullets 10 minutes vote 231 198 republican-led house approve conceal carry reciprocity act would require state recognize others permit carry hide load firearms public state requirements conceal gun vary widely state deny permit people commit domestic violence crimes eight require permit supporters bill still must approve senate say state recognize others drivers license permit make concealed-carry permit exception detractors say bill trample state right gun permit differ drivers license generally uniform across country also say legislation gun owners abide requirements lenient state bill pass eight days fifth anniversary sandy hook shoot 20 children six adults perish far year 14,412 people die 29,277 injure firearm-related incidents unite state accord gun violence archive percent children teenagers bill supporters also point last month texas shoot man fire rifle flee gunman kill 26 worshippers church gunman late find dead car know citizens carry conceal firearm good prepare act self-defense also defense others say house judiciary committee chairman bob goodlatte republican legislation also include bipartisan measure strengthen national instant criminal background check system meanwhile justice department already begin study bump stock could soon ban bill let people bring conceal gun across state line pass u.s. house