Glock and Gun Groups Sue Over Connecticut's Ban on Convertible Handguns
Glock and allied groups have sued Connecticut over its ban on convertible semiautomatic handguns.
Why it matters: This litigation questions the constitutionality of banning firearms based on conversion potential, setting a precedent for firearms and constitutional law practitioners.
- Connecticut's ban targets semiautomatic pistols with cruciform trigger bars convertible to machine guns, effective October 1, 2026.
- Violations carry up to 5 years in prison and $5,000 fines.
- Glock Inc. and the National Shooting Sports Foundation filed lawsuits on September 21, 2026, challenging the ban as unconstitutional.
- Attorney General William Tong vows to defend Connecticut's gun laws aggressively.
On June 5, 2026, Connecticut Governor Ned Lamont signed legislation banning the sale and importation of semiautomatic pistols that can be easily converted into fully automatic machine guns. The law defines a convertible pistol as any semiautomatic pistol fitted with a cruciform trigger bar that can be readily changed by hand or common household tools using a pistol conversion device.
The new law, effective October 1, 2026, classifies violations as class D felonies, punishable by up to five years imprisonment, fines up to $5,000, or both. This legislation is part of Connecticut's effort to reduce the threat posed by weapons that can be rapidly modified to increase lethality.
On September 21, 2026, Glock Inc. and several gun rights activists filed separate lawsuits challenging the ban, arguing that no semiautomatic firearms have been banned solely for their potential conversion to machine guns before. The National Shooting Sports Foundation (NSSF) also sued the state, asserting the ban infringes on Second Amendment rights of law-abiding citizens by targeting popular striker-fired handguns with cruciform triggers.
Connecticut Attorney General William Tong responded the same day, stating he will vigorously defend the state's gun laws, saying, Connecticut's commonsense gun laws are lawful and lifesaving. I will aggressively defend Connecticut against efforts to erode those commonsense laws that keep people safe on our streets and in our schools, houses of worship and businesses.
The lawsuits raise complex constitutional questions around the balance between public safety and gun ownership rights. They follow a growing trend of legal challenges nationwide to firearm regulations relating to conversion devices and high-capacity weapons.
By the numbers:
- October 1, 2026 — Connecticut's ban on convertible pistols takes effect
- September 21, 2026 — Lawsuits filed by Glock and NSSF
- 5 years and $5,000 — Maximum prison term and fine for violations
What's next: Legal proceedings will test the constitutionality of Connecticut's law amid nationwide debates on firearm conversion devices.