Marine Aircraft Group 39 (MAG-39) is a United States Marine Corps aviation unit based at Marine Corps Base Camp Pendleton, California that is currently composed of six AH-1W Super Cobra and UH-1N Huey light attack squadrons, three CH-46 Sea Knight squadrons and one logistics squadron. The group falls under the command of the 3rd Marine Aircraft Wing (3rd MAW) and the 1st Marine Expeditionary Force (I MEF).