65 Aviation Ordnance
Marine Corps OccFld 65 is the aviation-ordnance field that keeps aircraft weapons support safe, accountable, and ready. It mixes explosives discipline with the pace and culture of aviation units.
This field fits Marines who want a technical aviation lane but are more interested in ordnance and weapons support than in airframes or engines.
The field splits between hands-on ordnance work, deeper ordnance-systems maintenance, and later senior oversight roles. That gives it a clean internal progression story for Marines who stay in the community. It is also a field where procedural mistakes matter quickly, so discipline is part of the MOS identity.
At a Glance
| Area | What to know |
|---|---|
| Field purpose | Support aviation units through ordnance handling, loading, systems maintenance, and ordnance oversight |
| Representative roles | Aviation Ordnance Technician, Aviation Ordnance Systems Technician, and Aviation Ordnance Systems Chief |
| Screening themes | Safety discipline, accountability, explosives handling, and procedural precision |
| Training anchor | Boot Camp, Marine Combat Training, and aviation-ordnance schooling before squadron repetition |
| Reserve note | Reserve access depends on aviation billet structure and the supported platform community |
Which Role Fits You?
Choose 6531 Aviation Ordnance Technician if every aircraft that drops a bomb or fires a missile had a marine on the ground who made it possible.
Choose 6541 Aviation Ordnance Systems Technician if most marines in aviation ordnance work the flight line: loading weapons, inspecting racks, moving ordnance to the aircraft.
Choose 6591 Aviation Ordnance Systems Chief if you don’t start your marine corps career as a 6591.
Common Entry Requirements
All enlisted Marines in this occupational field enlist with a minimum AFQT of 31, a high school diploma, U.S. citizenship, and MEPS medical clearance. Boot Camp is the first training gate: 13 weeks at MCRD San Diego or Parris Island. After graduation, Marines complete Marine Combat Training or the Infantry Training Battalion before attending their MOS-specific school. See each role’s profile below for specific ASVAB line scores, training details, and additional requirements.
Career Field Directory
- 6531 Aviation Ordnance Technician : Every aircraft that drops a bomb or fires a missile had a Marine on the ground who made it possible
- 6541 Aviation Ordnance Systems Technician : Most Marines in aviation ordnance work the flight line: loading weapons, inspecting racks, moving ordnance to the aircraft
- 6591 Aviation Ordnance Systems Chief : You don’t start your Marine Corps career as a 6591
Related Resources
Start with the ASVAB guide and PiCAT guide for broad planning. Then compare Marine aviation jobs if you want the wider aviation picture.