Are you using an Adj gas block?

[keystone183]

I love all of y'all, but are you possibly talking past each other? I don't have first hand experience with suppressors, but from what I've read, adjustable gas is the way to go with them. I've put together 4 Grendel uppers without adjustable gas (and without suppressors) and they've all ran fine. A properly sized gas port seems to do the trick without suppression.

I don't think I'm talking past anyone? I'm genuinely curious as to the mechanism? causing increase erosion on an adjustable block. I do have two ars setup with nonadjustable blocks because I realize they add an obvious layer of complexity/potential failure. I just see that as an issue in the most extreme of cases.