The graphic is courtesy of jedge and the laws are courtesy of the NRA.
The NRA has certainly been a help in getting these laws passed, but the primary effort has been by local gun-rights supporters in each state.
There simply is no way any D.C.-based lobbying group could do what has been done on this issue - push legal reform in every state, constantly, over decades.
It takes real grass roots - not astroturf.
The NRA has brought a great deal of gun control to the states.