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Small Arms/Artillery Repairer (45B)

Intelligence and Combat Support Army MOS Information
  • Enlisted
  • Active Duty
  • Army Reserve

Army forces use a wide array of weapons, from small field artillery to large ballistic missiles. Most of these weapons have electronic components and systems that help locate targets, aim weapons and fire those weapons. It's the Small Arms/Artillery Repairer's responsibility to keep these weapons operating properly.

The Small Arms/Artillery Repairer is primarily responsible for performing maintenance and repairs on small arms and other infantry weapons. Some of your duties as a Small Arms/Artillery Repairer may include:

  • Repairing and maintaining artillery, naval gun systems and infantry weapons
  • Cleaning and lubricating gyroscopes, sights and other electro-optical fire control components
  • Repairing and maintaining missile mounts, platforms and launch mechanisms
  • Testing and adjusting weapons firing, guidance and launch systems


Job training for a Small Arms/Artillery Repairer consists of nine weeks of Basic Training, where you'll learn basic Soldiering skills, and 13 weeks of Advanced Individual Training. Part of this time is spent in the classroom and part in the field. Some of the skills you'll learn are:

  • Electronic and mechanical principles and concepts
  • Use of electronic, electrical and mechanical test equipment
  • Use of schematics, drawings, blueprints and wiring diagrams
  • Operation, testing and maintenance of specific types of weapons systems
  • Operation and maintenance of fire control systems on ships

Helpful Skills:

Helpful attributes include:

  • An interest in science and math
  • An interest in working with electronic or electrical equipment
  • An ability to do work requiring accuracy and attention to detail
  • An interest in working with weapons

Advanced Responsibilities:

Advanced level Small Arms/Artillery Repairers supervise and train other Soldiers. As an advanced level Small Arms/Artillery Repairer, you may also be involved in:

  • Diagnosing and troubleshooting malfunctions of small arms and other infantry weapons and towed artillery