Connecticut’s new “convertible pistol” restriction was approaching its October 1 deadline with felony penalties and unanswered questions attached.

On September 30, U.S. District Judge Kari A. Dooley granted preliminary injunctive relief in two related industry challenges. For affected licensees, the ruling offers immediate breathing room. For the rest of the country, it offers a reminder: state firearms regulation can reach your business long before you have finished digesting the latest federal development.

The compliance calendar apparently did not get the memo that you also have a business to run.

What the court blocked

The operative order enjoins the defendant Connecticut officials from enforcing the provision of Public Act 26-41 that criminalizes knowingly importing into Connecticut, advertising, selling, or offering or exposing for sale defined “convertible pistols” manufactured on or after October 1, 2026. The provision carries a Class D felony penalty.

The statute’s definition focuses on certain semiautomatic pistols with cruciform trigger bars that can be readily converted through installation or attachment of a pistol converter, with specified exclusions.

The litigation includes Glock, Inc. v. Griffin and a parallel action brought by the National Shooting Sports Foundation, Shadow Systems, and Blue Trail Range. The court granted preliminary relief in both cases.

Why the plaintiffs prevailed at this stage

The court concluded that the plaintiffs demonstrated a likelihood of success on their Second Amendment challenge.

Connecticut relied on historical firearm “proving” laws—inspection and safety requirements—combined with the tradition of regulating machine guns. Judge Dooley found that those examples did not adequately justify this restriction on the current record.

The distinction was practical: historical inspections addressed whether a firearm was safe when sold. Connecticut’s restriction addressed what someone might later do illegally to an otherwise lawful handgun.

The court also questioned why the same firearm manufactured on September 30 required no comparable restriction while one manufactured a day later did.

The business consequences mattered, too. The opinion discussed disrupted orders, threatened customer relationships, contractual obligations, and advertising. Blue Trail Range had already stopped placing orders for affected handguns because of the impending law.

An unclear law does not need its first prosecution to start costing dealers money.

Renzulli’s role—and FFLGuard’s acknowledgment

Law360’s reporting on the September 29 hearing identified Christopher Renzulli, Peter Malfa, and Scott Allan of Renzulli Law Firm LLP as Glock’s counsel. Christopher Renzulli pressed the issue of unanswered requests for guidance about whether particular Glock products would be covered.

That article reported the hearing before the court issued its September 30 decision. The subsequent orders provide the actual result.

Renzulli Law Firm is an instrumental part of FFLGuard’s Attorney Advisory Group and has supported FFLGuard clients for years. FFLGuard commends the firm’s work in obtaining this important result for Glock, alongside the successful parallel industry challenge.

We will continue following the case.

What Connecticut FFLs should take from the ruling

While the injunction remains effective, the defendant officials cannot enforce the specific restriction identified in the order. That provides meaningful relief for otherwise lawful inventory replenishment, advertising, and sales involving affected pistols.

But the order is preliminary. It does not invalidate the entire act, settle every model’s classification, or authorize unlawful machine-gun conversions. The court expressly left model-specific questions unresolved and acknowledged that further development of the record could change its constitutional assessment.

Licensees should review the order against their actual products and transactions, confirm current guidance before changing procedures, and keep staff informed about subsequent developments.

Why FFLs nationwide should care

Connecticut illustrates how a state restriction can affect more than the dealer standing behind a counter inside its borders. Manufacturers, distributors, and businesses advertising or shipping into that market also face operational decisions.

The court’s reasoning may help inform litigation elsewhere. It does not automatically displace another state’s restrictions.

Several states are pursuing or implementing additional controls:

• California: AB 1127 established restrictions on dealer sales and transfers of defined machinegun-convertible pistols beginning July 1, 2026, with specified exceptions.

• New York: Enacted Penal Law provisions schedule restrictions on dealer and gunsmith transactions involving convertible pistols beginning May 31, 2027.

• Colorado: Its SB25-003 framework adds eligibility and training requirements for covered purchases and transfers of specified semiautomatic firearms beginning August 1, 2026, including dealer verification through the state system.

• New Jersey: Pending A442 proposes expanding the assault firearms definition, including reducing certain feature thresholds from two to one. Its proposed changes deserve monitoring; they are not current law merely because a bill has been introduced.

These measures have different definitions, deadlines, exceptions, and legal histories. Treating them as interchangeable is how a reassuring headline turns into a very expensive misunderstanding.

Turn awareness into operating decisions

With the federal regulatory landscape shifting and states pursuing additional restrictions, licensees need a regular process for tracking developments and acting on them:

1. Follow industry litigation and legislative efforts. Track the order, bill status, effective date, and scope—not just the announcement.

2. Review inventory and purchasing plans. Identify affected products and obtain reliable manufacturing-date information where relevant.

3. Check advertising and destination policies. State restrictions may reach offers, marketing, and shipments.

4. Update counter staff. Yesterday’s accurate answer can become tomorrow’s compliance problem.

5. Ask for guidance early. Resolve uncertainty before accepting an order or promising delivery.

Chaos is the new normal. State regulations can blindside licensees who are not paying attention.

FFLGuard commends this result and will continue following the Connecticut litigation. Clients with questions about affected inventory, advertising, or shipments should contact the FFLGuard team for guidance tied to their business.