Congress just proposed a bill that would impose a 20% tax on sale of firearms and a 50% tax on sale of cartridges and shells! Tell Congress NO!
The $200 NFA tax goes up to $500, and the $5 tax for AOWs and other qualified items goes up to $100.
Which obviously makes sense, because the people submitting to a rigorous BATFE background check and waiting 6-12 months for their paperwork to legally purchase their extra-fun bits over the counter, are the ones shooting up schools, churches, and crowds.

uh, wrong.

Also, it sure looks like it adds AR pistols to the NFA list. They want to have your AR pistol now require a $500 tax stamp, BATFE approval and registration, and a 6+ month waiting period.

(c) Certain Semiautomatic Pistols Chambered For Cartridges Treated As Firearms.—The first sentence of section 5845(a) of the Internal Revenue Code of 1986 is amended—
(1) by striking “and” before “(8)”;
(2) by striking “device.” and inserting “device, and”; and
(3) by adding at the end the following: “(9) a semiautomatic pistol chambered for cartridges commonly considered rifle rounds, configured with receivers commonly associated with rifles and capable of accepting detachable magazines.”.

h/t Froggodoggo321