The National Rifle Association (NRA) filed a lawsuit against California over a “first-of-its-kind” law that effectively bans one of the most popular handguns in America.

On Friday, Democratic Governor Gavin Newsom signed into law a new bill that bans the sale and transfer of Glock and Glock-style handguns in the state beginning January 1. In a suit filed on Monday, the NRA argues that the law blatantly violates the Second Amendment rights of Californians.

“Our message to Governor Newsom is simple: we will see you in court,” NRA Institute for Legislative Action Executive Director John Commerford said. “Gavin Newsom and his gang of progressive politicians in California are continuing their crusade against constitutional rights.”

“Once again, they are attempting to violate landmark Supreme Court decisions and disarm law-abiding citizens by banning some of the most commonly owned handguns in America. This flagrant violation of rights cannot, and will not, go unchecked,” he added.

California’s law says that gun sellers “shall not sell, offer for sale, exchange, give, transfer, or deliver any semiautomatic machinegun-convertible pistol.” That kind of pistol is defined as “any semiautomatic pistol with a cruciform trigger bar that can be readily converted by hand or with common household tools,” which applies to Glock and Glock-style pistols.

Democrats say the law is intended to crack down on the conversion of Glock-style handguns for use as a machine gun. That action is already illegal under federal law and carries a maximum sentence of 10 years in prison.

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The suit, against California Attorney General Rob Bonta, was joined by two members of the NRA, the Firearms Policy Coalition, and the Second Amendment Foundation. It noted that Glocks were among the “most popular firearms in the nation.”

Commerford told The Daily Wire that the lawsuit shows that the NRA “will not stand by while a rabid anti-gun governor dictates from their office how individuals can exercise their Second Amendment rights. The Supreme Court has opined that you cannot wholesale ban handguns, and that’s exactly what Governor Gavin Newsom just did.”

The Supreme Court ruling referred to by Commerford is the District of Columbia v. Heller case, where the court ruled that the right to own a handgun for self-defense was protected.