Federal Judge Blocks Connecticut Glock Ban Pending Bruen Review

What Happened

On Wednesday, September 29, 2026, United States District Judge Kari A. Dooley of the District of Connecticut issued a preliminary injunction blocking the enforcement of Connecticut’s ban on Glock pistols and Glock‑clone handguns. The injunction stems from a lawsuit filed by Glock Inc. and the National Shooting Sports Foundation (NSSF) challenging the law signed by Governor Ned Lamont in May 2026.

Judge Dooley’s ruling cites the Supreme Court’s 2022 decision in New York State Rifle and Pistol Association v. Bruen, stating that the state’s ban fails the Bruen two‑pronged test. She wrote that the defendants offered no adequate explanation for why a Glock made on September 30, 2026 would be unregulated while the same model made 24 hours earlier would be subject to restriction.

The judge also noted that the Second Circuit has previously cited the Glock 17 as an example when justifying an assault‑weapon ban, suggesting that the state’s reasoning contradicts prior appellate guidance. Connecticut officials, including Attorney General William Tong and state Senators Martin Looney and Bob Duff, publicly condemned the injunction.

What the Evidence Establishes

The record shows that Connecticut’s legislation, enacted in May 2026, prohibits the sale of Glock pistols and any handgun featuring a cruciform trigger bar, labeling them “machine gun convertible pistols” due to the alleged ease of attaching aftermarket switches that enable fully automatic fire.

Under existing federal law, the National Firearms Act of 1934 makes it illegal to possess or manufacture a fully automatic firearm that is not registered with the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF). The plaintiffs argued that the state ban therefore duplicates federal restrictions and lacks a historical analogue acceptable under Bruen.

Judge Dooley concluded that the plaintiffs have demonstrated a likelihood of success on the merits, deeming the statute presumptively unconstitutional because the state failed to show consistency with the nation’s historical tradition of firearms regulation.

Where the Accounts Conflict

While the plaintiffs characterize the ban as an unprecedented restriction on a common self‑defense handgun, Connecticut officials maintain that the law targets a specific conversion device that facilitates illegal machine‑gun production. Attorney General William Tong stated that the state will continue to defend the law despite the court’s ruling.

Supporters of the ban, including state Senators Looney and Duff, argue that Glock switches have been used in criminal incidents to convert semi‑automatic pistols into fully automatic weapons, justifying the regulatory approach. The plaintiffs counter that no evidence was presented linking the banned Glock models to actual misuse in Connecticut.

The judge’s opinion notes the absence of any adequate explanation from the state for the temporal distinction (firearms made Sept 30 vs Sept 29), a point the plaintiffs highlighted as arbitrary and unsupported by historical precedent.

Context and Stakes

The injunction adds to a growing series of post‑Bruen challenges to state‑level assault‑weapon and large‑capacity magazine bans, with federal courts in several circuits issuing similar preliminaries injunctions. A ruling upholding the injunction could encourage other manufacturers to file suits against comparable bans in New York, New Jersey, and Illinois.

For Connecticut, the legal battle threatens to delay the implementation of a policy marketed as a response to rising concerns about illegal conversion devices, potentially affecting state budget allocations earmarked for gun‑violence prevention programs. No specific dollar amount appears in the sources, but the state had allocated grant funds for community safety initiatives in its 2026‑2027 budget.

From the industry perspective, Glock and the NSSF frame the case as a defense of Second‑Amendment rights, warning that a successful ban could set a precedent for broader restrictions on popular handgun models based on cosmetic features rather than functional risk.

What to Watch Next

The state is expected to file a notice of appeal to the United States Court of Appeals for the Second Circuit, seeking to overturn Judge Dooley’s preliminary injunction. Appeals in Second Circuit gun‑cases historically have a roughly 40 % success rate for plaintiffs seeking to uphold state regulations.

If the appeal proceeds, the plaintiffs may move for a summary judgment to secure a permanent injunction, a step that could be decided within the next three to four months depending on the court’s docket. Conversely, the state could seek a stay of the injunction pending appeal, which would temporarily preserve the ban’s enforcement.

Observers should also monitor legislative responses; Connecticut lawmakers may draft a revised bill that addresses the court’s concerns about historical analogues while still targeting conversion devices, a process that could begin as early as the November 2026 legislative session.

Bottom Line

The preliminary injunction issued by Judge Kari A. Dooley temporarily halts Connecticut’s Glock ban, affirming that the law currently lacks sufficient historical justification under the Bruen framework. The decision reflects the plaintiffs’ success in showing a likelihood of prevailing on constitutional grounds.

While the state vows to continue defending the legislation, the ruling underscores the difficulty states face when attempting to regulate firearms based on cosmetic or modular features without clear precedent. The outcome will shape future Second‑Amendment litigation across the Northeast.

Ultimately, the case illustrates the ongoing tension between state‑level public‑safety initiatives and the federal constitutional right to keep and bear arms, with the next judicial steps likely determining whether the ban survives or is struck down permanently.