The only maker that I'm aware of that installs ramped barrels is Para Ordnance, and they do that because they use ramped barrels on all their guns, so it makes sense they would do it on an aluminum frame gun.
Like I said, I have over 9k rounds in mine and there's really no perceptible wear on the feed ramp...if you're still worried after that, then buy a Para. I just don't worry about it, it's not an issue unless someone polishes through the anodizing.
Para
does not use ramped barrels on all of their guns, only on some models. The Para Expert series come from Para without a ramped barrel.
