Actually just because a weapon is not on the list does not mean it isn't included check out sub-section L of the rule below. Basically, it comes down to whether or not the Attorney General thinks it is the type of weapon that should be banned or not and if the Anti-gun folks get in the White House you can bank on the new Attorney General being Anti-gun too.
`(L) A semiautomatic rifle or shotgun originally designed for military or law enforcement use, or a firearm based on the design of such a firearm, that is not particularly suitable for sporting purposes, as determined by the Attorney General. In making the determination, there shall be a rebuttable presumption that a firearm procured for use by the United States military or any Federal law enforcement agency is not particularly suitable for sporting purposes, and a firearm shall not be determined to be particularly suitable for sporting purposes solely because the firearm is suitable for use in a sporting event.'.
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