Its more of an indentation than it is finish wear. I know what you mean about the barrel wear. My other Glock 17 has about 2000 rounds through it and has some serious barrel smiles. I don’t have a similar wear on my other Glock 17 as I do on the one in the picture which made me curious.Is it a chip or just the finish? I’ve noticed my Gen5 show barrel wear (cosmetic) more than previous generations.