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Marine Corps MOS · Combat & Infantry

2131 Artillery Systems Technician

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

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Overview

Artillery Systems Technicians inspect, maintain, and repair towed artillery howitzers according to their grade and level of responsibility. They complete shop administrative forms and records using technical manuals and may train personnel, supervise maintenance duties, and manage shop maintenance programs.

Minimum ASVAB: MM 95

ASVAB policy: Not policy-reviewed · coverage unknown · as of 2026-10-19

Program scope has not been reviewed.

Policy applicability and coverage of the program's score routes have not been reviewed. Shown-route arithmetic is not an eligibility decision.

Source: navmc-1200-1l-fy26 (source date 2025-03). Policy applicability has not been established.

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Core Skills

  • Shop documentation using technical manuals
  • Shop maintenance program administration
  • Howitzer inspection and repair instruction

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Maintenance Workers, Machinery

Towed-howitzer inspection, maintenance, repair, and shop recordkeeping transfer to machinery maintenance and repair documentation.

How to prepare: Complete hands-on machinery-maintenance training focused on industrial equipment disassembly, reassembly, and maintenance work orders.

What the civilian work involves
  • Dismantle machines and remove parts for repair, using hand tools, chain falls, jacks, cranes, or hoists.
  • Reassemble machines after the completion of repair or maintenance work.
  • Record production, repair, and machine maintenance information.
Civilian tools and software (examples)
  • Computerized maintenance management system software CMMS
  • Microsoft Excel

First-Line Supervisors of Mechanics, Installers, and Repairers

For technicians who performed the corporal-through-gunnery-sergeant duties, supervising howitzer repairs, training maintainers, and administering a shop maintenance program align with repair-shop supervision.

How to prepare: Build a supervisory work portfolio showing maintenance programs you administered, repairs you supervised, and maintainers you trained.

What the civilian work involves
  • Inspect, test, and measure completed work, using devices such as hand tools or gauges to verify conformance to standards or repair requirements.
  • Monitor employees' work levels and review work performance.
Civilian tools and software (examples)
  • Microsoft Excel
  • Microsoft Project

Training & Development

Choose credentials for your target role. COOL funding markers describe program listings, not a guarantee of eligibility or funding.

Career Growth

  • Certified Maintenance and Reliability Professionals (CMRP)

    Develop equipment reliability, work management, and maintenance leadership knowledge for progression into repair-shop supervision.

    Eligibility and preparation: No education or work-experience minimum; candidates must not have taken the exam within the preceding six months.

    For: First-Line Supervisors of Mechanics, Installers, and Repairers

Notes & Sources

Evidence for this guidance (5 documents)
  1. NAVMC 1200.1L (FY26, in force): MOS 2131

    [1] MOS 2131 section "a. Summary"; cached text line 34889; NAVMC 1200.1L signed 2025-03-07, in force until 2026-10-01

    Supports: Shop documentation using technical manuals, Shop maintenance program administration, Howitzer inspection and repair instruction, Maintenance Workers, Machinery (O*NET 49-9043.00), First-Line Supervisors of Mechanics, Installers, and Repairers (O*NET 49-1011.00)

  2. O*NET: Maintenance Workers, Machinery

    [2] O*NET 30.3 occupational data

    Supports: Maintenance Workers, Machinery (O*NET 49-9043.00)

  3. O*NET: First-Line Supervisors of Mechanics, Installers, and Repairers

    [3] O*NET 30.3 occupational data

    Supports: First-Line Supervisors of Mechanics, Installers, and Repairers (O*NET 49-1011.00)

  4. COOL credential mapping: Certified Maintenance and Reliability Professionals (CMRP)

    [4] 2131 cached COOL credential feed

    Supports: Certified Maintenance and Reliability Professionals (CMRP)

  5. Society for Maintenance and Reliability Professionals: CMRP eligibility

    [5] Eligibility; retrieved 23 September 2026

    Supports: Certified Maintenance and Reliability Professionals (CMRP)

Defense contractor jobs for 2131

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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