Either way, it is a safe bet that the overall range to a target, say a US aircraft carrier, from the takeoff point of the MiG [now deployed in Syria], is realistically going to be no less than the stated 2,000 km, if not more. This is certainly a game-changer for US naval dominance! Carrier-based aircraft would have no chance to fly far enough from their floating airfield to intercept a MiG31 launching a Kinzhal at 1,000 km or more distance from the ship.
[moonofalabama.org]
What an act of savagery if Russia sells them to, say, Iran!
They won't.