U.S. Army · Combat Arms

13F Joint Fire Support Specialist

Army 13F Joint Fire Support Specialists coordinate indirect fires, close combat attack, and close air support for maneuver units while reporting battlefield intelligence and refining targets.

last verified 2026-06-03

13F (Joint Fire Support Specialist), spoken “13 Fox”, is in the Army and requires a minimum AFQT of 31 and GT of at least 87. Last verified 2026-06-03 against Army MOS 13F specification (PDF).

Quick check

Can I qualify for this job?

Enter the scores you already know. Leave a box blank if you do not have that score yet.

AFQT minimum 31Enter AFQT
GT minimum 87Enter GT

Plain requirement

What you need.

  • Min AFQT31
  • Training~14 weeks
  • GT line score≥ 87

Source: Army MOS 13F specification (PDF) · last verified 2026-06-03.

Role brief

About 13F — Joint Fire Support Specialist.

Army 13F Joint Fire Support Specialists coordinate indirect fires, close combat attack, and close air support for maneuver units while reporting battlefield intelligence and refining targets.

Starting pay · 2026

What this job pays as a junior enlisted member.

Base pay is set by pay grade, not by job — every Army enlistee at the same grade earns the same monthly base pay. These are the 2026 active-duty rates (3.8% raise, effective 2026-01-01).

GradeRankMonthly base payService
E-1Private (PV1)$2,407after 4 months of service
E-2Private (PV2)$2,698under 2 years
E-3Private First Class (PFC)$2,837under 2 years
E-4Specialist / Corporal$3,142under 2 years
  • Plus food allowance (BAS)$460/moFlat enlisted rate, tax-free, paid on top of base pay.
  • Plus housing allowance (BAH)Basic Allowance for Housing (BAH) is paid on top of base pay and is tax-free, but it varies by duty-station ZIP code, pay grade, and whether you have dependents — there is no single nationwide figure. Use the official DoD BAH calculator for your assignment location.DoD BAH rate lookup →

Source: DFAS 2026 active-duty basic pay tables (3.8% raise, effective Jan 1 2026) · last verified 2026-05-23 · date retrieved 2026-05-23.

Eligibility notes

What 13F candidates should check.

  • The current Army MOS 13F specification lists GT 87 as the qualifying score, effective August 2024. Older FA-score tables still visible in search results may be stale.
  • GT is a job line score, not the overall AFQT percentile. Candidates still need to clear the Army AFQT floor before the MOS-specific GT requirement matters.
  • The Army GT formula on this site is Verbal Expression plus Arithmetic Reasoning, so 13F prep should prioritize WK/PC and AR if your recruiter sheet uses the current GT standard.
  • The same MOS specification also lists normal color vision, SECRET security eligibility, U.S. citizenship, and mandatory formal training for initial award of MOS 13F.

What is Army 13F called, and is it the same as "13 Fox"?

Yes — they are the same job. 13F is the Army Joint Fire Support Specialist MOS; "13 Fox" is how the code is said aloud, spelling the trailing "F" with the NATO phonetic alphabet (the Army usually shortens the NATO word "Foxtrot" to "Fox"). Whether you search "13F" or "13 Fox", the requirement on this page is the same: AFQT 31 and GT of at least 87.

What ASVAB score do you need for Army 13F?

For Army 13F Joint Fire Support Specialist, the current Army MOS specification lists GT 87, plus the Army AFQT floor of 31. GT is a line score, not the same thing as the AFQT percentile.

Does 13F use GT or Field Artillery (FA)?

The current Army 13F specification reviewed on 2026-06-03 lists GT 87. Older National Guard and third-party tables still show FA scores, so confirm the current line-score code on your recruiter score sheet or enlistment contract.

Which ASVAB subtests matter most for 13F?

If your 13F requirement is GT 87, focus on Verbal Expression and Arithmetic Reasoning. Verbal Expression comes from Word Knowledge and Paragraph Comprehension; Arithmetic Reasoning is its own ASVAB subtest.

What are the current Army 13F requirements besides the ASVAB?

The Army MOS specification also lists normal color vision, SECRET security eligibility, U.S. citizenship, and mandatory formal training. A recruiter confirms current openings and the full medical/background screen.

How long is Army 13F training?

This page keeps the current 13F training estimate at about 14 weeks, but course length can change by ship date and schoolhouse. The Army MOS specification confirms formal training is mandatory; confirm your current BCT/AIT schedule with a recruiter.

Source: Army MOS 13F specification (PDF) · last verified 2026-06-03 · date retrieved 2026-06-03.

Nearby targets

Related Army score targets.

Related

Practice AFQT plus 13F line-score subtests.

AFQT + GT practice targets

Compare Army ASVAB requirements

Independent test-prep — not affiliated with DoD or the ASVAB program. See officialasvab.com for the test program.

Sources