The owner of a gun parts store in California is defying federal agents by refusing to turn over the names of more than 5,000 of his customers.

Dimitri Karras, a former United States Marine and the CEO of Ares Armor in National City, Calif., said agents from the Bureau of Alcohol, Tobacco, Firearms and Explosives are not investigating his business, KSWB-TV reported.

Rather, he explained, they are investigating his customers.

Karras said ATF agents threatened to close him down if he didn’t comply with their demands to turn over the names of roughly 5,000 customers who purchased a specific 80 percent lower receiver used for building an AR-15 rifle.

[readon2 url=”http://www.theblaze.com/stories/2014/03/14/feds-demand-owner-of-gun-parts-store-turn-over-customer-listbut-this-former-marine-and-ceo-is-not-complying/#”]Read the rest at The Blaze[/readon2]