But the NRA ( and its lobbying efforts ) have done a masterful job of convincing gun owners and gun lovers of exactly what you stated before regarding the "slippery slope" argument that ANY gun legislation will simply open "pandoras box" to further legislation ( ie. taking ur guns )
the NRA has spend 10s of millions over the years to do just that. They wont go quietly after spending that amount of money for lobby efforts to see it wasted.