My Glock rear sight walks...

[ST911]

Ameriglo rears have a lot more fit variability in Glock dovetails than some other sights. Not a knock, have a bunch, but something I expect and plan for.

If a sight walks or fits soft I peen/dimple an edge, works fine. Can be knocked off with a file later if needed.

Taller rears getting knocked off center will be a thing as exposed guns get knocked into stuff out in the world.

[BillSWPA]

The information about the steel hardness came from the instructions for the first set of Trijicon sights I purchased.

I am surprised that people have had to fit Dawson sights. All of the Dawsons I have installed went in with no problem with a sight pusher.

I can get my sights centered to within a few thousandths of an inch using the pusher.

[HTM]

I've always had to fit Dawson sights. From Glocks, HK's, and Kimbers. I personally prefer that.

I suggest the OP contact Ameriglo. I'm sure they will help you out.

[L-2]

In my prior thread post, I forgot to mention another sight install technique for a loose dovetail sight.
This other technique involves finding something to use as a shim between the sight and the slide's dovetail.
The material could be something such as a piece cut from an aluminum can; tin-foil; brass shim stock.
Here's an Amazon link (shortened) for shim stock starting at .002" thickness:
https://rb.gy/qrtim

[Olim9]

I've had numerous GL-429's walk out on OEM and milled dovetails. I like Ameriglo as a company but their dovetails are way too loose and they need to fix that. I recommend Dawsons.

[LowAndLeft]

I've had numerous GL-429's walk out on OEM and milled dovetails. I like Ameriglo as a company but their dovetails are way too loose and they need to fix that. I recommend Dawsons.

So I'm not going crazy? Thank you. It's walked the same amount to the same side 2x. This is a factory dovetail, btw.

[Olim9]

So I'm not going crazy? Thank you. It's walked the same amount to the same side 2x. This is a factory dovetail, btw.

Not at all. Almost every time I see one of those "irons don't fail" posts/videos on social media, a majority of them are rears on the suppressor height Ameriglos. If a sight goes in easily, generally speaking it's going to loosen just as well.

[Tannhauser]

Not at all. Almost every time I see one of those "irons don't fail" posts/videos on social media, a majority of them are rears on the suppressor height Ameriglos. If a sight goes in easily, generally speaking it's going to loosen just as well.

Exactly. If it’s easy to press into place, a sight is too loose.

[LowAndLeft]

Exactly. If it’s easy to press into place, a sight is too loose.

After reading the great replies here, I'm going to go after it with a brass or other soft punch per Dawson's video to see how loose it truly is. Not too worried about dinging it--might even dimple it before reinstalling it--prob just use red loctite first if I find enough snugness.

[BillSWPA]

After reading the great replies here, I'm going to go after it with a brass or other soft punch per Dawson's video to see how loose it truly is. Not too worried about dinging it--might even dimple it before reinstalling it--prob just use red loctite first if I find enough snugness.

Brass will certainly be softer than the sight, so I doubt you will leave a mark or otherwise damage the sight.

One nice thing about a punch is that you can apply the punch to the dovetail itself rather than the raised portion of the sight, further reducing the likelihood of damage. I know of only one sight pusher which is capable of pushing directly on the dovetail, and unfortunately it does not appear to be currently available.