Failure to eject/ bolt stuck

[41bear]

He must have did a design change. All of mine are hard against the shoulder too be properly set over the gas port.

It would appear that he must have made some changes because mine line up just like he says, now, just a tad off the shoulder. I also noticed that the closest clamp screw to the shoulder line up at the outside edge of the dimple on my barrels, for what it's worth.