The weapon is a MAC 10 not a MAK-10 as it is manufactured by Military Armament Corporation and is their Model 10.
And although it has a rifled barrel it is a pistol. Is it is fully automatic the it is a machine pistol.
The reporter probably wrote the piece from a phone interview and knows little or nothing about weapons. Someone from the police or sheriff’s dept. likely sketched the events for the reporter and the articlae written from the notes. BTW, Bushmaster makes some fine .223 pistols.