My google fu must be better than your google fu.
Anyway, for the price they are selling for on some websites, I would pass. It is just a billet lower that's made with the incorrect type of aluminum.
There are better billet lowers out there made with the proper materials by people with a lot of experience. Many of these come with additional features such as built-in trigger guard and flared magazine well.
If you want to gamble with your money, that's fine.