That is the one I was asking about in my thread. I am thinking it would be the one collapsing stock that would not interfere with the mag release and BHO when folded. I was tempted to order one myself. However, after measuring the existing folder I determined that the SOCOM on the folding adapter only works to add LOP relative to the folder that comes with the XCR. For me the existing LOP is perfect for general purpose duty but I would like some thing a bit shorter sometimes. Right now I have a Duostock on the XCR and when closed it cuts about 1.5" off the LOP (I did cut 5/8" off the buffer tube however). The problem I have with the Duostock and every other collapsing stock is that it interferes with the controls when folded. Terra, how is that SCAR style stock coming?