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Navy Rating · Combat & Infantry

GM Gunner's Mate

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

Gunner's Mates operate guided missile launching systems and perform and coordinate organizational and intermediate maintenance on missile launching groups, guns, gun mounts, small arms, torpedoes, and associated handling equipment. They analyze electrical, electronic, hydraulic, and mechanical casualties, prepare missiles and torpedoes for firing, and supervise ammunition handling, small arms qualifications, and crews assigned to ordnance equipment.

Minimum ASVAB: AR+MK+EI+GS 205 or AR+GS+2MK 205

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: milpersman-1306-618-rating-list-2026-04 (source date 2026-04). Policy applicability has not been established.

See if you would hit this score: free ASVAB practice test

Core Skills

  • Electrical, hydraulic, and mechanical fault diagnosis
  • Electronic and servo system testing
  • Ammunition and missile component inspection
  • Magazine sprinkler system inspection and repair

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.

Electrical and Electronic Engineering Technologists and Technicians

Diagnosing electrical and electronic casualties and testing and directing repairs to servo systems transfers directly to electronics troubleshooting and maintenance.

How to prepare: Complete a hands-on electronics troubleshooting lab that includes component testing, fault isolation, and a written repair report.

What the civilian work involves
  • Modify, maintain, or repair electronics equipment or systems to ensure proper functioning.
  • Replace defective components or parts, using hand tools and precision instruments.
  • Set up and operate specialized or standard test equipment to diagnose, test, or analyze the performance of electronic components, assemblies, or systems.
Civilian tools and software (examples)
  • Microsoft Excel
  • Adobe Acrobat

Equipment Quality Control Inspector

Inspecting ammunition, missile components, and weapons handling equipment provides directly relevant experience for equipment inspection and testing.

How to prepare: Practice inspecting a mechanical component against a drawing using calipers and gauges, then document measurements and acceptance decisions in an inspection report.

What the civilian work involves
  • Discard or reject products, materials, or equipment not meeting specifications.
  • Measure dimensions of products to verify conformance to specifications, using measuring instruments, such as rulers, calipers, gauges, or micrometers.
  • Inspect, test, or measure materials, products, installations, or work for conformance to specifications.
Civilian tools and software (examples)
  • Microsoft Excel

Notes & Sources

Evidence for this guidance (3 documents)
  1. NAVPERS 18068F Vol I (NEOCS, Jan 2026 edition): GUNNER’S MATE (GM)

    [1] Rating chapter "SCOPE OF RATING"; cached text line 39873; NAVPERS 18068F Vol I, 2026-01 edition

    Supports: Electrical, hydraulic, and mechanical fault diagnosis, Electronic and servo system testing, Ammunition and missile component inspection, Magazine sprinkler system inspection and repair, Electrical and Electronic Engineering Technologists and Technicians (O*NET 17-3023.00), Equipment Quality Control Inspector (O*NET 51-9061.00)

  2. O*NET: Electrical and Electronic Engineering Technologists and Technicians

    [2] O*NET 30.3 occupational data

    Supports: Electrical and Electronic Engineering Technologists and Technicians (O*NET 17-3023.00)

  3. O*NET: Inspectors, Testers, Sorters, Samplers, and Weighers

    [3] O*NET 30.3 occupational data

    Supports: Equipment Quality Control Inspector (O*NET 51-9061.00)

Defense contractor jobs for GM

Predecessor codes

Historical codes with documented links to GM. Each history page explains the change.

TCTurret Captain C and 1c

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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