The pre ban and post ban requirements refered to before the Federal "Assault Weapon" Ban and during the ban. Post does not refer to after the ban, all those requirements simply went away federaly (though some states inspired by the federal version created thier own.)
Some of the newer proposed Bans prohibit more than one feature, rather than two. Many new restrictions on many new firearms and types the previous one was not are also included. Most of the Bills for a new ban are given terms like "Assault Weapon ban Reinstatement" or "reauthorization" or similar wording to make many think it is the same as before when they are even more restrictive.
They often do have 90% of the bill the same as before, with a few key sentences a non-legal mind might not even notice introduced, allowing very widespread new controls.
Some new ones even allow the Attorney General, or the ATF under them, to pick and choose which weapons are legal for the American public.
A significant concenr, especialy as Obamas appointment to that position is severely anti-gun.
Some even allow the Attorney General to declare any weapon ever adopted by a Federal LEO Agency, or by the military to be presumed unsporting, and therefor illegal unless specificly given an exemption by the AG.
Well most guns have been adopted by Federal LEO, or the military at some point. Many bolt actions, many semi autos, even pumps shotguns. They also include any firearm based on such firearms, or designed after.
However all such bills have so far been defeated, and we currently have no such ban.
So Pre-ban and Post-Ban terms mean nothing right now.
What they will mean under a new AWB will be different than what they meant under the old expired one, so understanding what they meant before is not going to help you understand what they would mean in the future.
Some states still have "Assault weapon" bans, which mean something different everywhere. Since "assault weapon" is not a real term the definition is different in every jurisdiction. They expand to include whatever the local state or county considers too dangerous for mere commoners. What onestate considers an "assault weapon" is different than what some other states consider an "assault weapon", and even some of those states change to include more firearm types or features under the definition over time. So the definition is not stable.
"Assault weapon" is just a fancy term for weapons they want banned. In CA even a single shot, or bolt action firearm can be an "Assault Weapon" if chambered in the wrong caliber. A pistol with a threaded barrel is an "assault weapon" etc etc.
Since many were banned by features in the first Federal AWB, people coined terms like "pre-ban" to refer to firearms in configurations legal before the date of the ban, and "post-ban" for those in legal configurations after that date. Many manufactures had to change the cosmetic features to make legal "post-ban" models.
Now that that ban is expired, the terms mean nothing, and will likely mean something different in any future ban.
