mos.directory

Marine Corps · MOS history

4341 Mass Communicator

MOS 4341 was reclassified to primary MOS 4531 for Marines in grades private through sergeant. Marines holding MOS 4341 in grades staff sergeant through master gunnery sergeant were reclassified to primary MOS 4591. This replaced their primary specialty rather than adding another designation.

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Codes named in this history

Listed in today's directory

These codes have directory pages; their current use has not been reviewed, so no current claim is made here.

Codes without a directory match

  • 4531 stated by the source. No directory or archive record matches.

Documented history

Mass Communicator

October 1, 2017 is the listed effective date for the change. August 30, 2017 is the cited message's publication date.

  • The identification of MOS 4341 as “Mass Communicator” is uncertain.
Source extraction notes

PMOS reclassification; grade Pvt-Sgt. Cache identity mismatch is explicit in source field.

Source documents (1)

Reviewed September 24, 2026 against references 1 and 2.

Mass Communicator

The reclassification took effect October 1, 2017. August 30, 2017 is the publication date of MARADMIN 484/17, not the effective date.

  • An identification mismatch is noted but not explained.
Source extraction notes

PMOS reclassification; grade SSgt-MGySgt. Cache identity mismatch is explicit in source field.

Source documents (1)

Reviewed September 24, 2026 against references 1 and 2.

Historical information is drawn from the sources linked above. Classification dates are not personal service dates. Spot an error? Let us know.