Anyone else seen this? Some guy claiming to sell polymer lower receivers, complete for $99 shipped.

I ordered one just for giggles. Going to test it out mid-march with 1000 rounds of .223 and a few thousand .22lr and general abuse a rifle sees when camped out at the range for a week.

Was supposed to ship out this past tues, was told "buffer tube problems" and would ship out this coming tuesday. Starting to get suspicious but hey - can always cancel my order and get a new lower rec made of aluminum for $225 shipped w/transfer fees.