a3 front sight post

[ssgross]

Your OP said the sight was at 11:00

That was rough estimate. The point was to stress that it is obviously off. After looking at the extractor groove, I don't think it is nearly that far off. It looks better or worse depending on what angle you look at it or take the picture from.

that's adding .0027 to the headspace

Thanks for the specs.

What about the rear sight? Is that centered with the front sight cock-a-skewed? Are you going to have to relocate that, too?

At zero with the skewed front sight, you can see the rear sight location skewed left of center to compensate. Rear sight is easy to adjust/drift on this rifle and I'm not worried about it.
Actually, with some simple trig we can figure out the exact degree of rotation required, using the rear sight offset (easy to measure) and the height of the "A" blade above the bore. Let me measure. That will at least give better than an eyeball ballpark.
Angle = arcsin(D/H), where D is the distance the rear sight is drifted to zero, and H is the sight height.