After taking mine off to do some ramp and chamber polishing then seeing the front sight and gas block don't even align with the vertical pin/axis, I wouldn't give $5 for another S&W barrel. On top of that, the "thing on the end of the barrel" wasn't aligned. It was flashing to the left and pushing my barrel to the right. That was an easy fix and I don't use the stock sights so the rifle is not a total loss.