 The P-270 designation is believed to be the initial product codename for the class of missile, with the Russian Ministry of Defense GRAU indices (starting with 3M) designating the exact variant of the missile.The 3M80 was its original model.The 3M80M model (also termed 3M80E for export) was a 1984 longer range version of the missile, with the latest version with the longest range being the 3M82 Moskit M. The ASM-MSS / Kh-41 variant is the 1993 air-launched version of the missile.