89B Ammunition Specialist
Verified ASVAB line score requirement from the official Army specification. Ammunition: Ammunition handling, stock control and explosive ordnance disposal.
ST ≥ 91 or (ST ≥ 86 and GT ≥ 85)
Chapter 10c initial entry qualification.
Verified
Source checked 2026-09-12
What this means
Official Army Chapter 10c PDF qualifying-score section verified; non-score requirements remain separate.
The score listed above is the minimum line score threshold from the official Army MOS specification. Meeting this threshold does not guarantee enlistment — additional requirements such as OPAT physical testing, security clearance, medical screening, and training availability are evaluated separately by your recruiter. To see how ST 86 compares with the rest of the Army, read what counts as a good ASVAB score.
Which ASVAB subtests count toward 89B
89B is judged on 2 line scores. The subtests listed below are the Army's nominal definition of each aptitude area from DA PAM 611-21, Military Occupational Classification and Structure, Table 10-1 (ASVAB aptitude area composites). The score actually printed on your report is computed on the 1997 scale as a weighted sum of seven standard scores (DMDC 2004, Table 2.7) and may give weight to subtests outside the nominal list; GT is the exception and equals AR + VE exactly. Use the line score on your report, or compute it from your standard scores.
GS + VE (verbal: WK and PC) + MK + MC
GS (General Science), WK (Word Knowledge), PC (Paragraph Comprehension), MK (Mathematics Knowledge), MC (Mechanical Comprehension).
VE (verbal: WK and PC) + AR
WK (Word Knowledge), PC (Paragraph Comprehension), AR (Arithmetic Reasoning).
If your score is below ST ≥ 91 or (ST ≥ 86 and GT ≥ 85)
Your ASVAB report lists every line score, so start by finding ST and GT and noting the exact gap. A small gap in one composite is usually closed by improving the subtests that feed it, and each subtest counts toward several line scores at once.
Practice on this site: GS (General Science), WK (Word Knowledge), PC (Paragraph Comprehension), MK (Mathematics Knowledge), MC (Mechanical Comprehension), AR (Arithmetic Reasoning). Start a GS, WK, PC, MK, MC, AR practice set for 89B →
A retest is subject to Army retest rules and timing; ask your recruiter before planning around one. Practice results here are raw scores and never convert into an official line score.
Ammunition jobs ranked by ASVAB threshold
All 3 currently verified CMF 89 entries on this site, ordered by the lowest score that satisfies each rule. 89B sits at position 1: 0 jobs list a lower threshold and 2 list a higher one. Thresholds in different line scores are not directly comparable.
Other Army jobs judged on ST (Skilled Technical)
Because these MOS share the ST line score with 89B, the same subtests decide your standing for all of them. Jobs at or below 89B's threshold are fallback options; jobs above it are what a higher ST unlocks.
- 94P Multiple Launch Rocket System Repairer — EL ≥ 93 or (EL ≥ 88 and ST ≥ 85)
- 94A Land Combat Electronic Missile System Repairer — EL ≥ 102 or (EL ≥ 97 and ST ≥ 90)
- 94D Air Traffic Control Equipment Repairer — EL ≥ 102 or (EL ≥ 97 and ST ≥ 90)
- 94E Radio Equipment Repairer — EL ≥ 102 or (EL ≥ 97 and ST ≥ 90)
- 94F Computer/Detection Systems Repairer — EL ≥ 102 or (EL ≥ 97 and ST ≥ 90)
- 94H Test Measurement and Diagnostic Equipment Support Specialist — EL ≥ 107 or (EL ≥ 102 and ST ≥ 90)
- 94M Radar Repairer — EL ≥ 107 or (EL ≥ 102 and ST ≥ 90)
Next steps
- Check your scores against this and other Army jobs
- Practice GS, WK, PC, MK, MC, AR, the subtests that feed the ST and GT score
- Browse all Ammunition jobs in CMF 89
- Confirm the current requirement with your recruiter before relying on this information
Frequently asked questions
What ASVAB score do I need for 89B Ammunition Specialist?
The verified score threshold recorded for this MOS is ST ≥ 91 or (ST ≥ 86 and GT ≥ 85). Other requirements such as OPAT, clearance, and training are separate.
Which ASVAB subtests count toward the ST and GT score for 89B?
ST (Skilled Technical) is nominally GS + VE (verbal: WK and PC) + MK + MC. GT (General Technical) is nominally VE (verbal: WK and PC) + AR. The reported score is a weighted sum of seven standard scores on the 1997 scale, so subtests outside that list can also count. Compare the line score printed on your ASVAB report against ST ≥ 91 or (ST ≥ 86 and GT ≥ 85), or compute it from your standard scores with the calculator.
Is AFQT enough to qualify for 89B?
No. AFQT is used for general enlistment qualification. 89B uses specific Army line scores (ST ≥ 91 or (ST ≥ 86 and GT ≥ 85)), and the line-score rule shown here is the verified threshold. These are composite scores calculated from ASVAB subtests and are different from your AFQT percentile.
Are there Ammunition jobs with a lower ASVAB threshold than 89B?
No. 89B has the lowest entry threshold among the 3 currently verified CMF 89 entries on this site; 2 list a higher one.
Where does this 89B score requirement come from?
The verified threshold is recorded from the official Army MOS specification document. Chapter 10c initial entry qualification. Source checked on 2026-09-12.