AC-M19 Neptune

The AC-M19 Neptune is a naval air superiority/multirole fighter since the RFS-Navy is complaining about not having any kind of 5th gen technology for defensive purpose in-fact the RFS-Navy is pretty jealous of the AC-M47E of the RFS-AF
The Neptune is slower than the Libellule in term of speed and has less combat range than the Libellule but it way more agile than the Libellule and can actually perform post-stall maneuver
The prototypes of Neptune

The Neptune is actually equipped of a new generation of missile: The MPAAM(multipurpose air-to-air missile)
The MPAAM is designed to both types of aerial combat BVR and WVR

The Neptune is not equipped of any kind of IRST which reduce the initial cost but for a close combat defensive air superiority fighter this fighter is litteraly lethal

The Neptune cost 133M USD and not exported to any country and 2000 gonna being produced.

Controls:

AG1: Taxi mode
AG3: arresting hook
AG4: fold wings