6 Harriers, but 22 Ospreys - high speed, long range tilt rotor helicopters.
They can rescue downed pilots, transport special forces, or haul in some of their 1,800 Marines if there is need.
The primary mission of any VMM is lift. That’s what Ospreys do. A reinforced VMM has Harriers temporarily attached for CAS in and around the objective area. That’s what the Harriers are for.
TC