Thanks, Ironman,

"The required adaptor is part number 108246, and the cost is $130.00."

OK, I have ordered the adaptor, and Shawndy told me the Stock is a Magpul PRS 2. I have access to a PRS 2, but now I see there are two models of that, anyone know which one I am looking for to use with this adaptor with the BAT/S-K?