marine infantry are allowed to be colorblind

Marine Corps Basic Infantryman (0300 MOS)

The United States Marine Corps Infantry are the forces trained to handle enemies by close combat or with firepower.

The Infantry has access to and training to use a variety of weapons and ways to communicate with one another.

Also, there are a variety of specialties under the 0300 MOS for Infantry.

Therefore, infantry will receive an assignment to a specific area when reporting to the Infantry Training Battalion.

Requirements and Qualifications for 0300 MOS

0300 MOS Staff Sergeant evaluates a helmet retention system

The requirements for being assigned to the 0300 MOS is the same for any person wishing to be a Marine.

Also, these requirements may include education level, citizenship, and physical ability.

The 0300 MOS includes a requirement of an 80 in the General Technical section of the ASVAB test.

Related ArticleMarine Infantry MOS Guide 

0300 MOS Training and Career Path

After boot camp, the second phase of Marine military training is the School of Infantry.

In the Marines, all members are considered riflemen, and those with the 0300 MOS train at the Infantry Training Battalion (ITB) while the other Marines train in combat skills at the Marine Combat Training Battalion (MCT Bn).

Also, the School of Infantry (SOI) is a transition into the professional training of combat-ready Marines.

This professional training for the 0300 MOS is 59 days in length.

Furthermore, during this training, the first couple of weeks are the necessary skills all Marines learn.

After that, Marines with the 0300 MOS designation go on to receive advanced training in combat marksmanship, how to identify explosive devices, how to fight in urban settings, patrolling, grenades, to name just a few.

Furthermore, the next part of training is when marines with the 0300 MOS designation learn the specifics of their MOS designation within the 0300 MOS.

Here are a few of the options for the 0300 MOS:

  • 0311 – Rifleman
  • 0313 – Light Armored Vehicle Crew
  • 0331 – Machine Gunner
  • 0341 – Mortarman
  • 0351 – Assaultman
  • 0352 – Anti-tank Missileman

Related ArticleMarine Officer Candidate School (OCS) Guide

0300 MOS Pay and Benefits

The pay and benefits for Infantry are related to rank and time in service in the Marine Corps.

InsigniaPay GradeRankAbbreviation2023 Minimum Monthly Pay
E-1 +4 monthsPrivatePvt$1,917.60
E-2Private First ClassPFC$2,149.20
E-3Lance CorporalLCpl$2,259.90
E-6Staff SergeantSSgt$2,980.50
E-7Gunnery SergeantGySgt$3,3445.80
E-8Master SergeantMSgt$4,957.20
E-8First Sergeant1stSgt$4,957.20
E-9Master Gunnery SergeantMGySgt$6,055.50
E-9Sergeant MajorSgtMaj$6,055.50
E-9Sergeant Major Of The Marine CorpsSgtMaj$6,055.50

Job Details

A Marine in the Infantry makeup the ground forces and receive training to destroy enemies in combat.

Infantry Marines use their competencies to employ a variety of weapons and the use of communication systems to handle crises during a conflict.

Job Reviews

The job reviews are a good mix of positive and negative.

Positive remarks include the discipline and the working conditions being a welcome challenge, as well as the camaraderie that evolves from being in this position in the Marines.

Also, negative comments address the physical demands of the job, as well as the stress from the overall working environment.

Reviews for 0300 MOS Review for 0300 MOS

Civilian Career Opportunities

The civilian prospects for Marines who discharge from the military and look for work are varied.

Also, the 0300 MOS is an entry-level position; therefore, the civilian jobs tend to be blue-collar positions rather than administration.

Some of the careers with the highest expectation of job growth are as follows:

  • Tile and Marble Setters – $43,050
  • Remote Sensing Technicians – $50,550
  • Pesticide Control – 37,330
  • Cartographers and Photogrammetrists – $65,470

Related ArticleUSMC MOS 3043: Career Details


While all Marines are riflemen and receive combat training, some Marines are assigned to the 0300 MOS and receive advanced training in weapons and communication systems.

After meeting the basic requirements all Marines meet and the completion of boot camp, Infantry Marines attend advanced training.

As their training nears completion, these Marines receive specific designations within the 0300 MOS, such as Machine Gunner or Anti-tank Missileman.

The pay for this position is the same for all Marines as it is based on rank and time in service.

Furthermore, there are many positions for Marines to consider once they leave active duty, too.


Levi D.
MOS 0300

MOS 0300

4.8 out of 5 (37 Ratings)

Learn more about MOS 0300, including what the requirements are, the training and career path, and job opportunities after service.
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