That IS LMT's MRP rail or Monolithic upper w/e you want to call it. LMT is saying its not theirs because its been shaved down by a third party instead of coming straight out LMTs machine shop that way. But its defenetly an MRP, it even says so when you click on his link. The guy just probably took it to a company similar to ADCO and the such and had it shaved down.
