The NYPD cops involved in the fatal Sean Bell shooting probably won’t be fired — but it is unlikely they will ever be allowed to carry guns again, sources said yesterday.

A day after federal authorities passed on pursuing civil-rights charges against the trio who fired 50 shots at the unarmed bridegroom and his friends, the focus shifted to the officers and their impending departmental trials.

Police Commissioner Ray Kelly put the four shooters and their supervisor on modified duty after the November 2006 shooting outside a Queens strip club.

Since then, three of the officers charged were acquitted, including Michael Oliver, who fired 31 of the 50 shots that filled Bell’s car.

Despite the number of shots Oliver fired, his punishment is likely to be less severe than his lieutenant, who did not fire a shot, sources said.