SKS rear sight sits angled

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rob350

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Got some time in on the weekend to put my 52 Tula on paper. But I realized that the sight sits crooked. Its like the pin on the left side of the folding piece is a bit smaller, meaning the spring under neither pushes it up towards the right, making the rifle shoot (average groups) to the right about 2-3" at 50 yards.

Its not much, but that little bit puts it off. I have tried jamming a piece of wire inside, but i dont think i can get it to fully sit right.

Can a guy get a new sight for it?

Can the folding piece (that has the 2 pins on it) be removed, allowing me to make the pin on the right smaller to compensate for the left?
 
IMG_0733.jpg


The red circle is the pin im talking about. The pic lies thought, it looks like its size is good.
But reality the pin is too small (or the hole on the black part is too large?) allowing me to depress the sight on the left side.


Seen in the video, when pressing down on the left side the sight it will move down, back to sitting flat/ not crooked.
But on the right side it will not move any. (properly)

http://s23.photobucket.com/albums/b380/spike1701/guns/?action=view&current=Movie.flv



Due to the spring thing underneath that pushes up on the sight to keep pressure on it, it pushes the left side up, making it sit crooked while shooting.
 
Well, pull the leaf out and see if the pin is bent, then measure the pin and hole on both sides. That should tell you what is happening.

You pull the leaf out by pressing it down towards the front and pulling it back with the pins lining up with grooves on the inside of the base. On mine there is a really small pin inside the bigger pin that you have to drive out first.

If the pin on the left side really is smaller than the hole then you could compensate by making a small bushing out of thin sheet aluminum (a strip from a pop can) and pressing it in from the outside. When you are sure its fitted right you could put a bit of epoxy on the outside before putting it back in for the last time.

However, I'm not sure that .010 to .015" of slop at the pin will cause a 3" error at 50 yards. You will probably also need to move the front sight to the right about .030" as well.
 
Thanks, got the sight out. The female holes are virtually the same size.
The male posts are (top to bottom)
Left: .1190"
right: .1285"
Left being a bit smaller, I dont know if that difference is anything to worry about, but it would be contributing to it sitting crooked.

Being that the spring holds the sight up, the top of the pins is what matters.
With further inspection, the right pin is flush with the top of the sight, and even appear to have been (slightly)flattened on the top to make it flush.

Where as the left pin is below the top of the slight slightly, meaning the spring would push the sight up farther in order to get the left pin to touch the hole.

Being that it does not need much play/lack of precision in there to throw off the groupings, im thinking both of those (smaller left pin, and left pin being lower) is what is making the sight sit crooked.




I wonder, should I try to file the right pin so that it is not flush, making the right pin at the same hight as the left pin. ???

Also, what is a new sight worth(just the little piece i pulled off)? In case i cant fix this one, or i mess this one up.



EDIT
Just put the sight back in, it appears that the flat spot on top the right pin caused two kinda corners on each side of the flat spot. The corners are catching in the hole, not allowing the right side to go fully up and seat in the hole.

Leaving me to think I should file the right pin lower, and make sure i make the pin round/remove the corners.
 
If the right pin won't go up to the top of the hole then carefully file it just a bit. Whatever you file off can't easily be put back on.

Parts are available.
 
My personal view is that the red circle & watching it on the video link it look's like the two holes for the rear sight is slightly drilled on an angle. The best and cheap way to work around it is to adjust your front sight post to compensate. Or scope this rifle. Sorry to be the barer of bad news.
:redface:
 
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