A federal judge has shot down a California law requiring citizens to pass background checks before they are allowed to purchase ammunition.

U.S. District Court Judge Robert Benitez in San Diego called the state's law "onerous and convoluted" before he granted a preliminary injunction in favor of a lawsuit filed by the California Rifle and Pistol Association (CRPA) and six-time Olympic medalist shooting champion Kim Rhode, NBC News reported.

Californians voted for Proposition 63 in 2016, thereby banning "high-capacity magazines" and mandating background checks for ammunition sales.

The checks have been in effect since July of 2019.

Benitez issued his 120-page opinion on the ruling on Thursday, according to the Associated Press.