SB279 creates the “Gas-Operated Semiautomatic Firearms Exclusion Act,” a broad firearms restriction measure that would prohibit, beginning July 1, 2025, the importation, sale, manufacture, transfer, receipt, and in many cases possession of certain gas-operated semiautomatic firearms, large-capacity ammunition feeding devices, machine guns, and “rapid fire devices.” The bill defines these terms in detail and directs the attorney general, in consultation with the Department of Public Safety, to publish and maintain a list of regulated gas-operated semiautomatic firearms and to establish marking and certification procedures for covered firearms and magazines.
The bill also creates a certification system for owners of covered firearms, with different deadlines depending on whether the firearm was already owned in New Mexico before January 1, 2026, transferred within an immediate family, or brought into the state by a new resident. Certified firearms could still be possessed, but only in limited locations and circumstances, such as on private property, at licensed ranges, at gunsmiths, or while traveling between those places in a secured, unloaded condition. The bill includes exceptions for government entities and certain nuclear-security licensees, and it allows transfer of certified firearms to out-of-state residents or licensed dealers.
SB279 would significantly amend state firearms law by creating new criminal prohibitions and administrative duties. It would make violations generally misdemeanors, while possession of a prohibited firearm or magazine during the commission or attempted commission of a felony would be a fourth-degree felony; separate provisions make unlawful machine gun or rapid fire device possession a fourth-degree felony. It also requires firearm dealers to record purchaser acknowledgments, maintain certification records, and comply with attorney-general-prescribed marking rules, while making certification information confidential and exempt from public records disclosure.
Because no committee transcripts or votes were provided, the available context does not show recorded debate or formal legislative sentiment. Based on the bill’s structure and subject matter, the measure appears to be a high-impact gun control proposal intended to reduce access to semiautomatic firearms with gas-operated cycling systems, high-capacity magazines, and rate-of-fire-enhancing devices. The main likely points of contention are the breadth of the definitions, the attorney general’s authority to determine the regulated firearm list, the certification and recordkeeping requirements imposed on owners and dealers, and the practical effect of limiting possession of already-owned firearms to narrow circumstances.
SB279 would add a new chapter of firearms restrictions to New Mexico law, primarily in Chapter 30, Article 7 NMSA 1978. It would prohibit or tightly regulate certain semiautomatic firearms, large-capacity ammunition feeding devices, machine guns, and rapid-fire devices, while creating new duties for the attorney general, the Department of Public Safety, licensed firearms dealers, and firearm owners. The bill would also establish new misdemeanor and felony penalties for violations and create confidentiality protections for firearm certification records.
No committee discussion or vote history was provided, so there is no recorded legislative sentiment to summarize from the available materials. From the bill text alone, the measure is clearly framed as a public-safety and firearms-regulation bill, but it is also the kind of proposal that typically draws strong opposition from gun-rights advocates because it restricts possession of commonly owned semiautomatic firearms and imposes certification and dealer-recordkeeping requirements.
The most likely points of contention are the scope of the ban and the breadth of the definitions, especially the attorney general’s authority to identify which gas-operated semiautomatic firearms are covered and to update that list over time. Another likely dispute is the certification regime, which requires owners to document possession, carry proof in some circumstances, and rely on licensed dealers or the attorney general to process forms. Opponents would likely object to the practical burden on lawful owners and dealers, while supporters would likely emphasize the bill’s exceptions, grandfathering for pre-2026 ownership, and limits on where certified firearms may be possessed.