Hey guys, brand new FN owner and also new to the forums. I bought my FNS 40C new about 2 weeks ago and have shot about 100 rounds through it so far. After my last trip to the range, I noticed these marks on the inner ejection port while I had it broken down cleaning it. Not sure how they got there or what they're from but there's about 10 pretty consistent marks/scratches as you can see in the photos.
Anyone have any idea what these are from? I'm guessing they're just from ejecting shells but...should I be concerned about this? I own several auto handguns and have never seen this before.
Thanks for any info!