M4D pistol (Earth-7149)

The M4D pistol is a handgun used by officials in the UNSC Navy and the Office of Naval Intelligence. Considered antiquated by 2557, it is superficially similar to the M6H magnum.

History
Senior biologist James Blair drew an M4D pistol before sabotating the radio room of the URNA Outpost 51, on Kamchatka.