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Suggest a Feature →Infantry Weapons Officer
Leads weapons platoons and companies employing mortars, heavy machine guns, anti-armor weapons, and other crew-served weapons systems in support of infantry operations.
“Infantry Weapons Officers are the Marine Corps' masters of combined arms at the company level. You'll lead weapons platoons employing mortars, heavy machine guns, and anti-armor missiles -- the devastating firepower that enables the rifle company to close with and destroy the enemy. This is tactical excellence at its most lethal.”
You are a Weapons Platoon Commander, which means you own the mortars, the machine guns, the assault section, and the heaviest concentrated firepower in an infantry company. When the rifle platoons make contact, they call you. Your 60mm mortars drop rounds on targets within minutes of a fire mission. Your machine gun section delivers sustained suppressive fire that shapes the entire battlefield. You coordinate with company and battalion fires, meaning you're talking to the FAC, the FiST, and your own sections simultaneously while rounds are impacting. The tactical responsibility is immense — you control the weapons that determine whether the company can mass effects on the enemy. Your platoon sergeant is probably a staff NCO with more combat experience than you, and the dynamic between a new lieutenant and a veteran weapons platoon sergeant is the most important relationship in the company. Deployment means your weapons are the company commander's main effort for fire superiority, and you need to deliver. The administrative burden is also real: three sections of Marines with different equipment, different training requirements, and different personalities. Your tactical fire coordination skills, leadership under pressure, and combined arms expertise make you valuable to defense consulting, military contracting, and federal law enforcement tactical teams.
MOS Intel
- 1Your value is in your technical expertise — stay current on every weapons system in the battalion, including new acquisitions and upgrades.
- 2Build relationships with the armory and maintenance Marines. They make or break your programs.
- 3Document your qualifications and certifications meticulously — they translate directly to defense industry and firearms training roles.
The 0306 Infantry Weapons Officer is one of the most respected warrant officer billets in the Marine Corps. You are the subject matter expert that battalion commanders rely on for everything weapons-related. The path to get here is long — years of enlisted infantry experience — but the payoff is a stable career doing what you love without the command burden of commissioned officers. The recruiter doesn't recruit for this MOS; it finds you. Civilian translation is strong in the firearms industry, defense contracting, and law enforcement training. The downside: warrant officer promotions are slow, and the billet structure limits where you can be assigned.
What this actually is in the real world
Your skills translate. Here's what civilian employers call this job — and what they pay.
Police and Sheriff's Patrol Officers
Strong matchManagement Analysts
Related fieldTraining and Development Specialists
Related fieldSalary data from the U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics program, retrieved Feb 2026. BLS.gov cannot vouch for the data or analyses derived from these data after the data have been retrieved from BLS.gov.
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