[Spats McGee]

Originally Posted by Luger_carbine

Not sure what this means though:

The suit claims the tax infringes “on the right of law-abiding citizens to keep and bear, and law-abiding Retailers to sell, arms as guaranteed” by state and local constitutions

The RKBA reference is obvious. The right to sell arms may refer to:

SECTION 16. EX POST FACTO LAWS AND IMPAIRING CONTRACTS
No ex post facto law, or law impairing the obligation of
contracts or making an irrevocable grant of special
privileges or immunities, shall be passed.
(Source: Illinois Constitution.)

That's a Spats McGee WAG, though.