It's been the site of many protests through the years.
Chuck's Gun Shop's closure is a welcome relief to anti-violence advocates in nearby Chicago, who say the shop was a main source of guns used in crimes across the city.
A locked gate can be found in front the south suburban store's front entrance, with a sign posted on the window that reads, "Going fishing forever."
Despite the closure, there is still signage on the building, near Indiana Avenue and 143rd Street, advertising the business.
It's also not clear for how long the shop has been closed, but a neighbor said it's been at least a couple months.
According to a 2017 Gun Trace Report, Chuck's was one of two source dealers of traced crime guns in Chicago.
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The report by the city of Chicago that tracked about 15,000 guns found at crime scenes back to the point of purchase found roughly 1,000 weapons recovered between 2013 and 2016 had been bought at Chuck's. And, of those firearms, the report found 21% of those weapons ended up at a crime scene within a year of the sale and 39% of the weapons were recovered at a crime scene within three years of the sale.
In 2022, Father Michael Pfleger of St. Sabina Catholic Church and other protesters hosted a "Die-In" right in front of the business, hoping to bring attention to gun violence and stricter gun laws.
On Friday, Pfleger said it's a good day for Chicago and public safety.
"They had no values or morals," Fr. Pfleger said. "It was all about money and making money. A lot of violence, a lot of these lives up here on this board were cost at the cost of Chuck's Gun Shop. For whatever, they are closing now and good riddance."
The gun shop has been a target of activists since around 2007, when Pfleger and the Rev. Jesse Jackson were arrested for trespassing while protesting outside.
While its website is still active, the phone number isn't.
The husband of the gun shop's owner was going inside the building when ABC7 arrived.
When asked why they were closing, he said they wanted to spend more time with family.
What happens to the site next is anyone's guess. It's unclear if another gun shop will occupy the space or something else.