The complaint filed Friday in federal court in Nevada says Haig didn't have a license to manufacture armor-piercing ammunition, which is required to manufacturer or sell such ammunition by US law.
Douglas Haig said at a news conference Friday that he met Stephen Paddock at a Phoenix gun show in the weeks before the October 1 shooting in Las Vegas that killed 58 people.
"Very very thankful that he didn't use any of the ammunition that I sold him, but at the same time I wish he had because it would have given people more reason to scatter", said Haig.
From the complaint: "Significantly, forensic analysis determined that the two unfired armor piercing cartridges from Paddock's Mandalay Bay hotel room (bearing Douglas Haig's fingerprints) had toolmarks consistent with the reloading equipment recovered in Haig's backyard workshop during the October 19, 2017 search". Haig advertised armor-piercing incendiary ammunition on his website, which now says the business is "closed indefinitely".
Victor also said he does not expect to seek legal recourse with the Nevada court that released Haig's name to the Las Vegas Review-Journal - a move Haig said has changed his life "quite a bit".
It wasn't immediately clear if the request for the armor piercing ammo struck Haig as unusual or over bearing in quantity?
On Friday, Haig said Paddock first interacted with Haig's business at a Las Vegas gun show, where another man was working Haig's booth.
Haig's lawyer said they held the news conference in a bid to protect his reputation after he was revealed earlier this week to be a "person of interest" in the investigation.
"I was shocked that my name was the only one that was not redacted", he said.
"He said that he was going to the desert and put on a light, either with or for his friends", said Haig.
Haig remarked Paddock at the time being well dressed, polite, and that the "customer" hadn't raised any suspicions. Had he used it, Howard said, even relatively low-quality cellphone video would have shown the very bright projectile trajectory. Haig further states that he did not have any other dealings with Paddock. "I'm a vendor. I'm a merchant whose name was released".
Haig said Friday he is no longer selling ammunition and is not sure he ever will again.
Speaking of the bullets which contain a pyrotechnic charge that illuminates the path of fired bullets, Haig said, 'You would have seen red streaks coming from the window'.