A concealed carrier stopped two men attempting to rob this pizza restaurant in Bucks County, Pennsylvania.

At Porfirio’s II Pizza and Pasta on Tuesday night, one of many pizza joints in Bucks County, Pennsylvania, two employees were getting ready to close up at 10 p.m. with a sole customer left in the seats.

That’s when everything changed, according to this story from ABC.com.

The story says police report two armed men entered the restaurant wearing dark clothes, backpacks, face masks, gloves, and wearing hoods while brandishing handguns. They yelled commands at the customer, who complied by backing away and putting his hands up.

The two robbers were brothers and locals, Shawn and Justin Rose, who proceeded to pistol-whip the customer, the story says.

“When the armed suspect looked away for a moment, the customer pulled out a .45 caliber handgun from beneath his jacket,” said District Attorney Matt Weintraub in the story. “He shot the man who had just pistol-whipped him once in the torso, killing him.”

The man he shot was Shawn Rose, police say. The customer then turned to 22-year-old Justin Rose, who was pointing his gun at the clerk, and fired twice, the story says.

Rose then fell through the restaurant’s front door, the story says. He was taken to St. Mary Medical Center in Langhorne in serious condition and later transferred to a hospital in Philadelphia in critical condition.

Police did not identify the armed customer, but said he has a license to carry a firearm in Pennsylvania that was recently expired, and that he’s a local business owner and will not be charged in the incident.

“He is a lifelong, law-abiding citizen and yes, you do get credit for that. A business owner who had the gun solely for his own protection and thank God he did,” Weintraub said in the story.

The CCW holder refused medical treatment for lacerations and abrasions to his head, the story says.

“He was pistol-whipped,” said Middletown Twp. Police Lt. Stephen Forman in the story. “They were very aggressive. He was in imminent fear of his life, and believed that was his only option to get out of there that night.”

In an ironic twist, police discovered that the two robbers’ guns were in fact plastic airsoft pistols, and not real firearms.

The shop’s owner, Gilmer Porfirio, says he can’t thank that customer enough, the story says.

“To me his (sic) is part of the family now. He’s a hero,” Porfirio said in the story.