Well then, this is a surprise. AIM-424 “Malice” air-to-air missile, two stage long range AAM.
aviationweek.com
U.S. Navy Testing New Long-Range Air-to-Air Missile | Aviation Week
The U.S. Navy is developing and currently flight testing a new long-range air-to-air missile that will far exceed the capabilities of the AIM-120 and likely the recently disclosed AIM-174B as well.
aviationweek.com