I've got for sale a new-in-box, never mounted, black color FAST stock for the XCR Light and Medium rifles.
Specs on the stock are here
What you see is exactly how it shipped to me and everything it comes with:
The black version sells for $235 shipped from Robinson. I'm listing this for $220 shipped (via USPS with Delivery Confirmation, insurance is extra and at buyer's discretion). Payment by either USPS money order or PayPal Gift/Personal is okay.
SOLD to Mr_Staypuft