Im pretty sure its a brake. It has the side ports like the ak74 brake, but with the flash hiding tines on the front.
Tommy, who did you talk to?? I contacted cncwarrior, asked about it and got no response back.
Its a good deal for 40 dollars and 1.50 shipping. I absolutely love cncwarrior, as they are not greedy with their shipping. If a large company cant send something thru the mail cheaper than I can, they are just looking for more money from their customers.
This brake may be cheaper than the PWS FSC, but if it doesnt work as good, i dont want it.