Army Job: MOS 91G Fire Control Repairer

Fire Control Repairers make sure Army weapons are up to par

U.S. Soldier performs maintenance on a Browning .50 Cal Heavy-Barrel Machine Gun
••• Craig DeBourbon/E+/Getty Images

The Fire Control Repairer does maintenance on combat vehicles, infantry and artillery fire control systems and equipment, and test equipment. It is a key Army job that would be well-suited to enlisted men and women who want to work in electrical or electronic repair.

If you're good with your hands and have a knack for fixing complex mechanical things, then this job, military occupational specialty (MOS) 91G, could be a good fit for you.

Duties for MOS 91G

These soldiers do repairs on highly-specialized equipment like laser range finders, ballistic computers, laser observation devices, laser designators, thermal imaging systems, periscopes, telescopes, commander's weapon station/auxiliary sights, and aiming circles.

MOS 91G is often called upon to repair equipment in combat situations, and will diagnose and troubleshoot any equipment malfunctions. And a big part of this job is training and supervising lower-grade soldiers in how to operate and maintain fire control systems and equipment. 

Training for MOS 91G

Job training for a fire control repairer requires the standard ten weeks of Basic Combat Training (boot camp) and 19 weeks of Advanced Individual Training (AIT) at Fort Lee in Virginia. 

Soldiers enlisting in this MOS learn electronic and mechanical principles and concepts, how to operate electronic and mechanical test equipment, and how to read and understand schematics, drawings, blueprints and wiring diagrams.

Fire control repairers also learn to use and maintain various weapons systems and how to operate and maintain fire control systems aboard Army ships. To be clear: what these soldiers do isn't the same as what Army firefighters do. The primary responsibilities of this job are focused on making sure Army weapons systems fire safely, and that all weapons are kept in top working order.

Qualifying for MOS 91G

Having an interest in science and math and an aptitude for working with electronics and electrical equipment will prove very useful in this role. And you should be interested in working on weapons and weapons systems, although prior knowledge is not required.

To be eligible for MOS 91G, you'll need a score of at least 98 on the electrical (EL) portion of the Armed Services Vocational Aptitude Battery (ASVAB) tests, or, the combination of a 93 in the EL section and an 88 in the general technical (GT) segment. 

You'll need to be able to qualify for a confidential security clearance from the Department of Defense, which involves a background check dating back seven years, looking at any criminal and financial activity. 

Fire control repair specialists must be U.S. citizens, and normal color vision (no colorblindness) is required. 

Similar Civilian Occupations to MOS 91G

A lot of what you'll learn in this job is specific to the Army, and won't have a true civilian equivalent. But the skills you learn will help prepare you for a career as an electronic mechanic, an avionics technician or a missile facilities repairer with companies that design, build and test weapons for the military.