The Kh-31 (Russian: ĐĄ-31; AS-17 'Krypton') is a Russian air-to-surface missile carried by aircraft such as the MiG-29 or Su-27. It is a sea skimming cruise missile with a range of 110 kilometres (60 nmi; 70 mi) or more and capable of Mach 3.5, the first supersonic anti-ship missile that could be launched by tactical aircraft.
There are several variants, it is best known as an anti-radiation missile (ARM) but there are also anti-shipping and target drone versions. There has been talk of adapting it to make an "AWACS killer", a long-range air-to-air missile.
Not bad if you wanted to sink an allied ship and blame it on someone with slavtech. I'm interested in why they wanted delivery to the states. We buy any Sukois or MiGs to use them on here?