I hope LaPierre is not being manuevered into something here. He stated "there's not a dimes worth of difference between guns on the list, and guns not on the list". It's true of course, but that may open up the retort "Obviously more guns need to be added to the list, and the bill now in him the House will do just that", Which is also true, in spades. It appears that the House bill would pretty much ban all semi-automatic center fire firearms, certainly anything with a pistol grip or thumbhole stock, and argueably many without even that feature.
I would much prefer to see LaPierre arguing that the ban was and is ineffective in combating misue of guns, and that, oh by the way, it's completely and unambiguously unconstitutional.