I went over to Quentin Defense the other day for some parts and talked to them about the Plum Crazy lowers. They said they have been selling them for awhile and haven't had anyone return them yet. The guys at Quentin Defense are pretty solid guys but I am skeptical about long term use with the polymer lower. They are selling them as a complete lower w/6 position stock for $129. That is pretty tempting. I was considering using one for a .22 plinker.