Owner of Park Slope landmark pulls plug after gun-nut gala hit

THE GRAND Prospect Hall got gun-shy Monday night, canceling a Brooklyn club’s annual fund-raiser after a withering backlash from the neighborhood.

Grand Prospect is the second catering hall to boot the Brooklyn Friends of the NRA. The group originally scheduled its annual fund-raiser at Gargiulo’s restaurant in Coney Island — but that eatery canceled the event amid outrage over the Feb. 14 deaths of 17 students and staffers at Marjory Stoneman Douglas High Parkland, Fla.

Gun club members thought they had found a sympathetic space in progressive Park Slope, where the Grand Prospect Hall is known for commercials that declare, “We’ll make all your dreams come true.”

But after the Daily News reported on the new venue, the outcry became a nightmare for the Grand Prospect.

“The internet went crazy,” Michael Halkias, the owner of the hall, said. “The people of Park Slope are very focused, and they made their case to the Grand Prospect Hall. Some of School in them were very convincing and gentle — and some of them were very nasty and ugly.”

Halkiasinitially defended the gun group get-together at his hall.

“Guns are not a bad thing,” he said, when asked about the gathering. “They can be a bad thing, like anything, you know?”

He also was willing to weather complaints from some local schools.

“I do have a certain amount of opposition from certain schools that I have (in the area),” he said Monday afternoon, before pulling out. “I told them that if they get me a document from the