Not hk quality - Magpul Industries Precision Rifle/Sniper Stock

I bought this stock for my Hk SR9T and loved it ! It allows you to pull your scope off and adjust it for open sites and back again with ease. The problem is one of the mounting bolts (about 3/16") is long (2 1/2") and literally holds the entire back portion of the stock to the gun. Yes,, One bolt holds the stock on...and it's nut is connected to a 1/4" piece of plastic. Mine broke after a year and now the stock is junk!!! I can't believe Magpul would build something this cheap and then charge so much money for it. I'm so pissed, what a waste of money.