Is This American Eagle Fraudulent?

[aolis110]

I have doubts about this American Eagle barreled extension I've had for a while. I fear it might be a fraud. The American Eagle chamber crest looks very crude when compared to others I've seen on this site. The barrel is in 9mm. The number 9539 is under the barrel,and GERMANY is stamped on the right side of the extension. I've never posted pictures before,so I hope all of them show. Any information would be greatly appreciated.