They already banned 7.62 X 39 steel core ammo because someone made a legal pistol for sale in AK type configuration. That happened during the Clinton regime.
Nearly all rifle calibers have had pistols made that chamber them. Check out the Contender series for example.
These people are going after what they can grab, IMHO. Logic and reason have nothing to do with it.
These are mostly stockless, short barreled, pistol gripped versions of the rifles. Not something I’d call a real ‘pistol’. Try shooting a 45LC Ranch Hand actually using the sights..... I’m talking about real rifles and pistols using the same ammunition.
BTW, I’m still waiting for the weirdo who’s gonna come up the the Garand Pistol...short barrel, cut-off stock and pistol grip added, short op-rod, retimed gas cylinder and action.....[actually, I’d really like to have one of them to go with the other real 4 that I’ve built up]