I was annoyed, but it did only take about 5 minutes with my Dremel, a felt wheel, and some polish, to smooth out my chamber.
Shouldn't have come that way, but it's not hard to deal with yourself.
And there I was counting yours as the one that worked out of the box...
Guess that's 4 out of 4. If they were advertised as 90% barrel, maybe. One thing for sure they're not drop in, and require work.
Seems I'm the only one where it wouldn't even fit the receiver tho, the chamber I didn't really care about: like you said, that's an easy fix. But I had bigger problems.





















































