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USA91F

Small Arms/Towed Artillery Repairer

Performs maintenance on small arms, crew-served weapons, and artillery weapons systems. Inspects, troubleshoots, and repairs mechanical and electrical components of weapons.

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Recruiter vs. Reality
What they tell you

You'll be the Army's weapons doctor — diagnosing and repairing everything from M17 pistols to M249 SAWs to M777 howitzers. You'll learn the mechanical system of every weapon in the inventory at a level most shooters never reach. Civilian armorer certifications, gunsmithing credentials, and law enforcement agency armorer positions are legitimate exits. Every major police department, Sheriff's office, and federal agency has an armorer position, and military-trained weapons repairers have a genuine hiring edge. If you're a gunsmith at heart, the Army will pay to make you one.

What it's actually like

You fix guns. Not in a cool John Wick way — in a 'this M4 lower receiver has been through three deployments and someone lost a detent pin and now I have to figure out which of 40 parts is causing a failure to feed' way. Your 'small arms repair' sounds simple until you realize the Army's weapons inventory includes pistols, rifles, machine guns, grenade launchers, and artillery sights that were all designed by different companies in different decades with different tolerances. Your armorer's toolkit is your identity, and you will develop opinions about firing pin protrusion that no civilian will ever care about but that will save someone's life in a firefight. The precision is real. The frustration is real. But somewhere, a soldier's weapon works because you fixed it right. That's the whole point.

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MOS Intel

ClearanceSecret
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PromotionAverage
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Deploy TempoModerate
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BonusUp to $10,000
Career Intel
Duty StationsFort Gregg-Adams (VA) · Fort Liberty (NC) · Fort Cavazos (TX) · Fort Campbell (KY) · Any installation with an arms room
Daily LifeRepairing, maintaining, and rebuilding small arms (M4, M9, M17, M249, M240) and artillery systems. Performing inspections, replacing parts, gauging weapons, and performing modifications. You are a weapons gunsmith — the Army's precision firearms specialist. Garrison includes a steady flow of weapons from unit arms rooms needing maintenance.
AIT / SchoolAIT at Fort Gregg-Adams (VA) is about 14 weeks. Covers small arms disassembly, repair, rebuilding, and gauging. Also covers basic artillery and fire control systems repair. The training is detail-oriented and requires patience and precision.
Physical DemandsModerate. Bench work and shop work — precision tasks with hand tools, some heavy lifting of weapon systems and components. More fine motor work than brute strength.
DeploymentsDeploys with maintenance units to support weapons repair in theater
Certifications
Small Arms Repairer qualificationArmorer certificationGunsmithing fundamentalsVarious weapons-specific certifications
Pro Tips
  1. 1Learn every weapon system the Army uses — the broader your experience, the more valuable you are to both the Army and civilian employers.
  2. 2Civilian gunsmithing is a real career with a dedicated market. Many 91Fs open their own shops or work for firearms manufacturers after the Army.
  3. 3Pursue machining and metalworking skills on the side. CNC machining combined with gunsmithing knowledge opens doors to precision manufacturing careers.
The Honest Truth

Small arms and artillery repairer is the Army's gunsmith MOS, and if you love firearms, this is the job. The recruiter will describe working on every weapon system in the Army, and that is accurate. What they won't tell you: the work can be repetitive in garrison — a lot of the same inspections and parts replacements on the same weapons day after day. The creative gunsmithing work is less common than routine maintenance. The civilian translation is real but niche: firearms manufacturers (Colt, FN, SIG Sauer), federal armories, and custom gunsmith shops all hire experienced weapons repairers. Some 91Fs start their own gunsmithing businesses. The broader path into precision manufacturing and machining is also viable with additional training.

Training Pipeline
1
BCT10w
Fort Jackson (SC)
2
AIT15w
Fort Campbell (KY)
Small Arms/Artillery Repairer — weapons maintenance, technical manual adherence, armorer duties.
On the Outside

What this actually is in the real world

Your skills translate. Here's what civilian employers call this job.

Installation, Maintenance, and Repair Workers

Strong match
Salary data coming soon
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