![M-4](https://cdn.statically.io/img/static.wikia.nocookie.net/memoryalpha/images/2/22/M-4.jpg/revision/latest/scale-to-width-down/180?cb=20080125200831&path-prefix=en)
Flint's M-4
- See M-4 multitronic unit for the failed computer unit by this same name.
M-4 was the designation for a robot constructed by Flint. It served as his "butler, housekeeper, gardener, and guardian." The robot hovered in the air and was capable of firing a type of heat beam.
It was destroyed by Spock firing a type 2 phaser at it in 2269 and was immediately replaced by a second unit: "Too useful a device to be without, really". (TOS: "Requiem for Methuselah")