For the first time since the New Deal era, there is a real legislative path to gutting the National Firearms Act — and I want to walk through exactly how this works, why the Byrd Rule challenge is weak, and why the constitutional landscape makes it nearly impossible to walk back even if Democrats reclaim Washington.
The House Passed Suppressors Out of the NFA — the Senate Finance Committee Went Further
Here is where we stand. The House of Representatives passed the Big Beautiful Bill — the budget reconciliation bill — with language removing suppressors from the National Firearms Act. That alone is historic. But when the bill moved to the Senate and landed with the Finance Committee, the committee went further: its revised text incorporated the SHORT Act, sponsored by Senator Roger Marshall (R-KS), which removes not just suppressors but also short-barreled rifles and short-barreled shotguns from the NFA’s $200 tax-stamp and registration regime.
That $200 transfer tax has been the mechanism of NFA control since 1934 — punishing in Depression-era dollars and still functioning today as a chokepoint requiring fingerprinting, ATF registration, and multi-month wait times. The Senate Finance Committee language eliminates all of that for suppressors, SBRs, and SBSs in a single stroke.
Why the Byrd Rule Does Not Kill This
The obvious Democratic response is a Byrd Rule challenge. Let me explain why I believe it is unlikely to succeed.
The Byrd Rule restricts reconciliation bills to provisions affecting federal revenues or mandatory spending and bars “extraneous” policy changes. Democrats will argue that removing suppressors and SBRs from the NFA is substantive criminal law reform — not a tax provision — and therefore impermissible in reconciliation.
The answer lies in what the NFA actually is. The National Firearms Act is codified at Title 26 of the United States Code — the Internal Revenue Code. It is administered by the IRS. Its penalties fall under Title 26 statutes of limitations. The Supreme Court has confirmed, twice, that it is a tax.
In Sonzinsky v. United States, 300 U.S. 506 (1937), the Court upheld the NFA as a valid exercise of Congress’s taxing power under Article I, holding that courts will not inquire into Congress’s regulatory motives behind a facially valid tax. That remains binding precedent.
And in NFIB v. Sebelius, 567 U.S. 519 (2012) — the Obamacare case — Chief Justice Roberts reaffirmed that an exaction with the essential characteristics of a tax is a tax for constitutional purposes, even if it incidentally influences behavior. The NFA’s $200 transfer levy sits squarely on the tax side of that line.
Because the NFA is a tax statute, modifying it falls within what a reconciliation bill may do. The Byrd Rule challenge is weak.
Can Democrats Put These Items Back?
This deserves a serious answer at two levels: statutory and constitutional.
At the purely statutory level, yes — a future unified Democratic government could theoretically reenact the $200 tax and reinstate NFA registration for suppressors, SBRs, and SBSs. Nothing in the rules prevents a new Congress from passing a new law.
But here is where the constitutional argument becomes formidable.
The Trump Department of Justice has already staked out a changed position — in United States v. Peterson, No. 24-30043 (5th Cir. 2025) — on Second Amendment protection for suppressors. The Fifth Circuit’s original panel held they were not “arms” protected by the Second Amendment. DOJ reversed course, arguing that suppressors enjoy at least some Second Amendment protection because they are necessary for the meaningful exercise of the right. The Fifth Circuit then withdrew its panel opinion.
That matters enormously. If suppressors, SBRs, and SBSs are arms under the Second Amendment, a targeted tax on them runs into a line of cases that stretches back decades.
In Minneapolis Star & Tribune Co. v. Minnesota Commissioner of Revenue, 460 U.S. 575 (1983), the Court struck down a use tax that singled out a narrow group of newspapers — holding that a targeted tax on constitutionally protected activity is presumptively unconstitutional. And in Harper v. Virginia State Board of Elections, 383 U.S. 663 (1966), the Court struck down Virginia’s poll tax precisely because attaching a financial condition to the exercise of a constitutional right is impermissible.
Reinstate the NFA regime for items the Supreme Court has recognized as arms, and you have a targeted $200 tax on the exercise of a constitutional right. That case writes itself.
The Common-Use Lock-In
There is a second, independent reason a Democratic rollback faces near-insurmountable obstacles: the common-use standard from District of Columbia v. Heller, 554 U.S. 570 (2008).
Under Heller, the government may only ban arms that are dangerous and unusual. Once an arm is in common use by law-abiding Americans for lawful purposes, it cannot be banned — and the standard is national, not local.
If this reform takes effect in 2025, millions of suppressors, SBRs, and SBSs will enter the commercial market before any hypothetical future Congress could act. The common-use threshold will be overwhelmingly satisfied. At that point, the government cannot carry its burden to show these arms are dangerous and unusual, and it cannot constitutionally ban them. The same logic applies to any reinstatement of a punitive registration tax: it becomes a targeted financial burden on the exercise of a right protecting arms already in tens of millions of hands.
The legislative window is now. And the constitutional floor, once established, makes retreat far harder than the critics want to admit.
This article is based on analysis by Professor Mark W. Smith, constitutional attorney and Host of the Four Boxes Diner 2nd Amendment channel. Watch the original video here. This does not constitute legal advice.