Happy New Year!

I've asked this question in a previous post as an addendum and not on its own. Due to that poor inquiry strategy, I wasn't successful in getting an answer, so I'll ask it again here.

The adjustable rear sight of my Inland M1icon Carbine wobbles (the base of the sight moves side to side) quite a bit in the rear sight receiver dovetail whilst dry-firing.

Any recommendations on fixing the wobble other than having it staked in place by a gunsmith?

More information: I installed the adjustable rear sight using the rear sight installation tool from Matrix. The adjustable rear sight appears to be original, but I got it with the rifle when I inherited it.

Thanks in advance!
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