Police have arrested four men for robbery after they allegedly lured their victims with ads on Craigslist for discounted iPhones and then robbed them at gunpoint.

The scheme allegedly began in early March, when the group advertised bulk sales of iPhones on the online classified ad Web site, Craigslist.org. Lieutenant Garfield Brown of the police department’s Brooklyn central robbery unit said the men’s postings usually offered about 10 iPhones for roughly $2,000.

Police officials said that New Yorkers who responded to the ads, which were posted as many as 12 times until early June, were told to meet the men, usually in the evening, on corners in East Flatbush.

Once there, officials said, the men robbed the interested buyers using a 9 mm pistol. Police said the men, who never had iPhones to sell, stole thousands of dollars.

Police said they responded to one of the Craigslist postings last week, arranging to meet the men by cell phone. They arrested them without incident at 9 p.m. yesterday at the intersection of Albany Avenue and Avenue K in the Flatlands section of Brooklyn.

Lieutenant Brown identified the men as Orival Michael, 19, Elorge Zamy, 20, Ulyses Campbell, 18, and Christopher Thervil, 19, all of Brooklyn. Officials said they recovered the loaded pistol during the arrest.

All four have been charged with conspiracy, robbery, and possession of a weapon, officials said, although they’ve only been able to link the men to four of the alleged 12 robberies.

Following the arrest, police said they found T-Mobile Sidekicks and laptops in the men’s possession, but had not yet determined whether they had been stolen.