A group representing firearms owners has asked three federal agencies to investigate how the gun industry’s main lobbying group secretly used the intimate details of weapons buyers for political purposes.

In making the request, Gun Owners for Safety cited a ProPublica investigation that detailed how the National Shooting Sports Foundation turned over sensitive personal information on gun buyers to political operatives while presenting itself as a fierce advocate for the privacy of firearms owners. The letter — sent last week to the FBI, the Federal Trade Commission and the Bureau of Alcohol, Tobacco, Firearms and Explosives — called the NSSF’s secret program that spanned nearly two decades "underhanded.”

“Gun owners’ privacy is not a partisan or ideological issue,” wrote Malcolm Smith, a Gun Owners for Safety member. “No matter the industry, exploiting customers’ private data like their underwear size and children’s ages in a secret scheme is reprehensible and cannot be permitted.”

Gun Owners for Safety has been operated since 2019 by the gun violence prevention organization Giffords, which was co-founded by Gabby Giffords, the Arizona lawmaker who survived an attempted assassination in 2011. It has chapters in nine states and consists of gun owners and Second Amendment supporters who believe in what they call “common sense” measures to reduce gun-related deaths like safety locks and improved background checks on firearm purchases.