New video shows federal agents storming a California gun parts store to execute a search warrant.

Authorities say they were looking for illegal gun parts, 80 percent lower receivers used as a base to make semi-automatic rifles.

But Dimitri Karras, owner of Ares Armor, said that on Monday, the store started receiving threats to its legal counselor, seeking a partial customer list and 80 percent lower receivers, which they had determined to be firearms. Karras said that the ATF has in the past determined a 14-inch piece of shoestring to be a firearm.

Karras said agents confiscated computers and customer lists. The raid occurred three days after Karras was granted a temporary restraining order against ATF agents.

The ATF said this is an active investigation and had no comment at this time.

Watch Karras’ interview above.

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