New PWS FSC 556 Flash Suppressing Compensator, it has the peel washer (HALO/standard). Prefer email contact - 80 shipped. Can take a picture if someone wants it, but looks like a standard FSC556 in the box :)
Picture from the web:
Received as promised in short order, excellent price, communication was superb. Wouldn't hesitate to do business w/ him again!