I look forward to checking out the FPC Series.
I just upgraded my Ruger PC 9 with the Magpul "Backpacker" stock. It may not be as fast as a fold away option, but for those with a PC 9, you won't be dissapointed.
One Issue: The lack of back packs for these style carbines. Yes, there are many bulky tactical back packs. however I wanted a inexpensive non-descript style to sling over my shoulder when desirable.
Case Club has the foam (18" X 16" X 3"). I took a 20" X 11" X 4" pack pack i had, Cut the foam to the PC 9 Backpacker outline, and married in some 3/4" sticky-back foam on the zipper side. No one is the wiser as to the contents.
Just a thought.