Watch ST, GT first.
Army MOS guide
89B Ammunition Specialist ASVAB score requirements
Score target and study focus for Army 89B.
89B
Army MOS score brief
Ammunition Specialist
ASVAB line score targetST 91+ or ST 86+ and GT 85+
Handles ammunition receipt, storage, issue, accountability, safety, inspection, and explosive-operations support.
Good fit if you like movement, inventory, accountability, practical systems, schedules, and operational support.
Logistics, supply chain, warehouse operations, transportation, inventory, procurement, and fleet support.
Study first
Focus these areas
General ScienceWord KnowledgeParagraph ComprehensionMechanical ComprehensionMath KnowledgeArithmetic Reasoning
- Use ST 91+ or ST 86+ and GT 85+ as the score target and keep verbal, arithmetic, mechanical, and practical systems work balanced.
- Practice percentages, ratios, inventory-style word problems, and detail-heavy reading.
Daily work
What you may do
- Support ammunition specialist tasks through movement, records, inventory, equipment, supplies, or distribution procedures.
- Track details so people, vehicles, materials, fuel, ammunition, water, or supplies are available when needed.
89B Army MOS FAQ
Common Ammunition Specialist ASVAB questions
What ASVAB score do you need for 89B Ammunition Specialist?
ST 91+ or ST 86+ and GT 85+ is the source-backed planning target shown on this MeritMarch guide. Treat it as study guidance, not an enlistment promise, because Army requirements, openings, waivers, medical qualification, and recruiter guidance can change.
What does a 89B Ammunition Specialist do?
Handles ammunition receipt, storage, issue, accountability, safety, inspection, and explosive-operations support.
Which ASVAB sections should I study for 89B?
Start with the score areas tied to ST 91+ or ST 86+ and GT 85+: General Science, Word Knowledge, Paragraph Comprehension, Mechanical Comprehension, Math Knowledge, Arithmetic Reasoning. If your AFQT is not stable yet, also keep Arithmetic Reasoning, Math Knowledge, Word Knowledge, and Paragraph Comprehension in the plan.
Is 89B guaranteed if I meet the score target?
No. ASVAB scores are only part of Army job access. Current openings, contract options, background checks, medical standards, citizenship rules, waivers, and Army needs all affect whether a MOS is available.
Where did MeritMarch get the 89B score target?
This page uses ST 91+ or ST 86+ and GT 85+ from Army enlisted MOS specifications, Chapter 10C, 10-89B, reviewed April 30, 2026. It is still shown as planning guidance because official requirements and openings can change.
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Sources and official confirmation
Source checked April 30, 2026: Army enlisted MOS specifications, Chapter 10C, 10-89B. Current Army job access still depends on Army policy, openings, medical qualification, background screening, waivers, and recruiter guidance.
More context reviewed April 30, 2026: GoArmy ASVAB entrance test, Official ASVAB military-jobs composites, Army enlisted MOS specifications, Chapter 10C, MeritMarch Army jobs based on ASVAB scores guide.