I currently have a Glock 23 and 19 Gen 3. I just purchased a new Glock 20SF from a national retail store. It was the last one they had and the display model. During the paperwork, I asked the salesperson if I could take the slide off and look under it. When I did, I noticed a 1.5 inch scratch on the left side of the stripper rail up under the slide. The salesperson stated that it was nothing and it came from the factory. I was hesitant but believed him. I got home and looked at my other two Glocks. No scratches. I did realize that the scratch on the 20SF is on top of the trigger bar. Which made me wonder if the scratch occurred during the factory test shoot. I was also wondering since it was the display, if a previous customer may have caused it. I've looked around online and haven't found any information on it. Has anyone ran into this issue before? It's a brand new 20SF. I found a picture online with a similar scratch. It's the thinner scratch.