A hearing aid and appertaining method of assembly are provided in which a receiver assembly is placed within a shell of the hearing aid, the receiver assembly comprising a left and right stud. A receiver tube is connected to the receiver assembly and extends through a hole in a supporting plate and shell tip respectively. A permanent latch is provided comprising a cavity into which the first stud of the receiver assembly is located when the receiver assembly is in its designated position. An external rail latch slides on the external rail and secures the receiver assembly in its designated position by interfacing with the second stud.