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Colorado Assault Weapon Ban Challenged
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Colorado Assault Weapon Ban Challenged

The Firearms Policy Coalition sued Denver over its assault weapon ban in federal court, the same week the Supreme Court agreed to take up a similar challenge. The case argues Denver cannot produce the historical tradition *Bruen* requires to justify banning common semi-automatic firearms. Both fronts — district court and SCOTUS — are now moving simultaneously.

Steve DuskettJuly 18, 2026
Article Info

Colorado Assault Weapon Ban Challenged

Court DecisionDeveloping
Colorado Assault Weapon Ban Challenged
Scope
JurisdictionColorado / Federal
Impactnational
Key Entities
Plaintiff organization filing suitFirearms Policy Coalition
Co-plaintiffColorado State Shooting Association
Defendant; enacted the assault weapon banCity of Denver
Taking up parallel assault weapon challengeU.S. Supreme Court
Legal Issues
  • Second Amendment protection for semi-automatic firearms in common use
  • Application of the Bruen historical tradition test to assault weapon bans
  • Whether municipalities can ban firearms categories that fail the Heller common-use standard
What It Means
  • Denver's ban on semi-automatic rifles, pistols, and shotguns is now under direct federal challenge
  • A favorable SCOTUS ruling could invalidate similar municipal bans across the country
  • Gun owners in any jurisdiction with assault weapon bans should watch this closely — the legal standard being set here applies nationwide
  • The Bruen historical tradition test is being stress-tested against some of the most restrictive local ordinances in the country
Timeline
2022NYSRPA v. Bruen decided — established historical tradition test
2025FPC and CSSA file Elliott v. Denver in federal court
2025Supreme Court agrees to hear separate assault weapon case

Colorado Assault Weapon Ban Challenged

FPC files federal lawsuit against Denver as SCOTUS prepares to weigh in on semi-auto bans nationwide

From The Boise Gun Club Handbook

The Firearms Policy Coalition and Colorado State Shooting Association filed suit against Denver's assault weapon ban — the same week the Supreme Court agreed to hear a parallel challenge.

State of play: Denver's ordinance bans a broad category of semi-automatic rifles, pistols, and shotguns the city labels "assault weapons." The new case, Elliott v. Denver, hits that ban directly under the Second Amendment framework the Supreme Court established in Bruen.

Catch up quick:

  • NYSRPA v. Bruen (2022) tossed the old interest-balancing test — governments now have to show a historical tradition of analogous regulation, not just argue public safety
  • Multiple lower courts have split on how Bruen applies to semi-auto bans, which is exactly why SCOTUS stepped in
  • FPC has been running a coordinated litigation campaign across several states, building a record for federal courts to work with

The FPC's argument isn't complicated. Semi-automatic rifles are in common use by millions of law-abiding Americans for lawful purposes. Under Heller and Bruen, that ends the inquiry. There is no Founding-era tradition of banning the most popular centerfire rifles in the country — because there couldn't be. The guns didn't exist. Denver has to produce historical analogues it cannot produce.

The intrigue: The timing is deliberate. With SCOTUS already taking up an assault weapon case, any federal court ruling in Elliott v. Denver becomes part of the legal landscape the justices are operating in. FPC is building pressure from multiple directions simultaneously — circuit courts, district courts, and now SCOTUS — rather than waiting on any single case to move.

What to watch: How the Supreme Court frames its ruling will determine how much work cases like Elliott still need to do. A broad ruling that common-use arms are categorically protected forecloses most municipal bans. A narrow ruling leaves room for cities like Denver to keep fighting in district court for years.

The bottom line: The constitutional question on semi-auto bans is finally getting resolved at the highest level — and FPC isn't waiting for SCOTUS to finish before filing everywhere it can.

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