Mine looks exactly the same as the 2nd picture. There is mark on the right side of lower ramp.So I got a different account after I couldn't change my username. I heard back from Walther and here is what they said:
Your PPS M2 has been evaluated by our Gunsmith and his findings are as follows. The feed ramp on the PPS M2 is different than most other guns. There are actually two metal pieces brazed together into one and then the feed ramp is cut after that process takes place. The horizontal line you can see on very far right side of ramp is where the two pieces meet up. The Gunsmith did hone on the ramp to enhance the cosmetics. However, there’s a fine line of taking away too much metal and if he goes any further it could result in feeding issues. Many of these guns exhibit the exact same appearance and it’s been like that since start of production. It presents no concern from safety, functionality, longevity, or other. I don’t recall ever seeing one of these actually break or otherwise separate. The appearance was as such when it left the factory and upon you taking possession of the gun. I can certainly understand where a person may not notice the line at first and then discover it at some point, maybe during a cleaning session. The Gunsmith test fired your gun on our range to confirm complete functionality and there were no issues found. If you ever encounter any issues as it pertains to functionality and reliability then please don’t hesitate to reach out to us. Your gun has a lifetime warranty against defects in material or workmanship and we’ll take care of any issues that may arise.
Not a bad response, but still is concerning, to me! I've attached pics of what it looked like before and after sending it in. Let me know what you think.