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Colorado Supreme Court Upholds 2013 Magazine Ban

Monday, July 6, 2020

Colorado Supreme Court Upholds 2013 Magazine Ban

In 2013, Colorado enacted House Bill 13-1224, which made it a crime, with some exceptions, to sell, transfer, or possess any “large-capacity magazine”after July 1, 2013. A “large-capacity magazine”meant any “fixed or detachable magazine, box, drum, feed strip, or similar device capable of accepting, or that is designed to be readily converted to accept, more than fifteen rounds of ammunition.”

Several gun rights organizations challenged the ban as an infringement on the right to bear arms protected by the Colorado Constitution. They argued, among other things, that HB 1224 had an excessively broad scope because it reached lawful activities that were commonly engaged in by responsible citizens. Further, the actual effect of the “designed to be readily converted”language was to ban almost all magazines with a removable floor plate or base pad, as this inherently created the possibility that the magazine could be converted to hold more than the maximum 15 rounds.

The parties agreed that prior to the ban, the number of magazines in Colorado with a capacity greater than 15 rounds was “in the millions,”that such magazines were not unusual or uncommon in Colorado, and that semi-automatic guns with detachable magazines holding more than 15 rounds were frequently used in the state for multiple legitimate purposes, including defense of the home.

The case proceeded through many hearings and appeals. In late 2018, the Colorado Court of Appeals, applying a “reasonable exercise”standard (that the state may regulate the exercise of the right to bear arms under its inherent police power so long as the exercise of that power is “reasonable”), concluded that the law was “reasonably related to the legitimate governmental purpose of reducing deaths from mass shootings.”

On June 29, the Colorado Supreme Court upheld both that decision and the magazine ban as constitutional.

Reaffirming the “reasonable exercise”test as the correct standard for reviewing challenges brought under the state constitution’s right to keep and bear arms provision, the state Supreme Court found that the plaintiffs “failed to prove that HB 1224 is an unreasonable exercise of the police power or that it has an improper purpose or effect of nullifying the right to bear arms.”The plaintiffs’“overly broad reading of the statutory definition”on prohibited magazines was “contrary to its plain language”and accordingly, the court rejected the contention that HB 1224’s definition of “large capacity magazine”could apply to all magazines with removable base pads.

Because the plaintiffs elected to challenge the law solely under the Colorado Constitution, the court discounted any arguments from U.S. Supreme Court decisions interpreting the Second Amendment, like Heller and McDonald. State law had its own precedents, and “our precedent construing [the state right to keep and bear arms] long ago charted a different course from case law interpreting the Second Amendment.”

The appropriate test, therefore, was the undemanding standard established by an earlier Colorado case –namely, whether the law constituted a reasonable exercise of the state’s police power. So long as the law could be said to have a legitimate government end within the police power, such as promoting the public health, safety, or welfare, and did “not work a nullity of the right to bear arms in defense of home, person, or property,”it would clear the bar. 

The case highlights the importance of selecting both the appropriate venue and applicable law in gun rights challenges. The court made it clear that “the Second Amendment applies with full force in Colorado and our legislature may not enact any law in contravention of it. But Plaintiffs have challenged HB 1224 only under the Colorado Constitution. Reviewing that claim, we conclude today that the legislation passes state constitutional muster. Because Plaintiffs do not challenge HB 1224 under the Second Amendment, we do not address whether the legislation runs afoul of the federal constitution.”

The decision is Rocky Mountain Gun Owners v. Polis, 2020 CO 66 (Colo. June 29, 2020) and is posted online at:  https://www.courts.state.co.us/userfiles/file/Court_Probation/Supreme_Court/Opinions/2018/18SC817.pdf.

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Virginia: Gov. Spanberger’s (D) Approval Tanks after Radical Anti-gun Legislative Session

News  

Monday, April 13, 2026

Virginia: Gov. Spanberger’s (D) Approval Tanks after Radical Anti-gun Legislative Session

It’s only two months into one-party Democrat rule in the Old Dominion, and Virginians don’t like what they’re seeing.

Australia’s National Gun Buyback Already an “Extinct Policy”

News  

Monday, April 13, 2026

Australia’s National Gun Buyback Already an “Extinct Policy”

The ineffectual virtue-signaling that so-called gun “buybacks” represent is finally being exposed on a global level, given the massive problems with the Canadian, and now the Australian, federal government gun bans and grabs.

Maryland: Semi-Auto Ban Goes to Governor’s Desk

Friday, April 10, 2026

Maryland: Semi-Auto Ban Goes to Governor’s Desk

Today, the generally assembly passed SB 334, a ban on many common semi-automatic handguns, it now heads to the governor’s desk

Virginia: Governor Spanberger Signing Away Your Rights

Friday, April 10, 2026

Virginia: Governor Spanberger Signing Away Your Rights

Today, April 10th, Governor Spanberger met the expectations of her anti-gun allies, signing two bills into law. This action sets the tone for what may come next as she has until April 13th to render a ...

We Can Relate: Digital Culture Rues Targeting of Neutral Technology, Innocent Users

News  

Monday, April 13, 2026

We Can Relate: Digital Culture Rues Targeting of Neutral Technology, Innocent Users

The rapid expansion of regulations targeting 3D printed firearms is increasingly raising justifiable concerns apart from the Second Amendment community.

Sacré Bleu! French Gun Owners Exposed in Government Data Breach

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Monday, April 13, 2026

Sacré Bleu! French Gun Owners Exposed in Government Data Breach

In a development that will shock absolutely nobody acquainted with the realities of gun control, there was another security breach of firearm owner data maintained by a government agency.

Virginia: Spanberger Bill Threatens to Ban Most Centerfire Semi-autos, Devastate Right-to-Carry!

Wednesday, April 15, 2026

Virginia: Spanberger Bill Threatens to Ban Most Centerfire Semi-autos, Devastate Right-to-Carry!

As bad as the Democrat-controlled Virginia General Assembly’s ban on commonly-owned semi-automatics is, phony moderate Gov. Abigail Spanberger (D) is seeking to make it even worse.

California: Anti-Gun Legislation Scheduled for Committee Hearings Next Week!

Thursday, April 9, 2026

California: Anti-Gun Legislation Scheduled for Committee Hearings Next Week!

On Monday, April 13th at 10:00 AM, the Senate Committee on Appropriations will hear Senate Bill 948, legislation aimed at dramatically expanding the scope and requirements of California's Firearm Safety Certificate.

Virginia: Spanberger Offers Fake Adjustments, Real Infringements on Virginia Gun Rights

Tuesday, April 14, 2026

Virginia: Spanberger Offers Fake Adjustments, Real Infringements on Virginia Gun Rights

Fresh off the heels of receiving one of the most abysmal approval ratings for a modern Virginia Governor, Abigial Spanberger has doubled-down and signed several pieces of anti-Second Amendment legislation.

Kansas: Legislature Adjourns Sine Die from 2026 Session, Governor Signs Suppressor Bill!

Monday, April 13, 2026

Kansas: Legislature Adjourns Sine Die from 2026 Session, Governor Signs Suppressor Bill!

On Saturday, April 11th, the Kansas Legislature adjourned sine die from the 2026 legislative session. 

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Established in 1975, the Institute for Legislative Action (ILA) is the "lobbying" arm of the National Rifle Association of America. ILA is responsible for preserving the right of all law-abiding individuals in the legislative, political, and legal arenas, to purchase, possess and use firearms for legitimate purposes as guaranteed by the Second Amendment to the U.S. Constitution.