I post over on arfcom all the time. I have been active in their Sig threads about the MPX. Apparently Sig has switched production over to just 8 inch pistol models and the folding brace is not currently being put out. The folder is rumored to be released for sale separately in August or so. I have been getting tons of PM's with interest in buying my brace and folder. I am waiting for my form 1 and collapsable stock, so I won't need this for long but it is currently in use. Not too motivated to sell, but the sharks are circling. What do you guys think is a good (for me) price to ask?