SLME III 303 sight question

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Catpop

Catpop

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I have the above with a rusted rear sight. It looks like it was designed to push in the button to adjust but it’s frozen in place and not moveable. Is that the way it works?
Thanks for help!
 
If what you have is an Enfield SLME No1 MkIII, your rear sight leaf should look like this.
index.php

The wheel on the right is for minor adjustments.
The button on the left is pushed in to slide for major adjustments.
EnfNo1Mk3RearSight(1).JPG
 
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If I recall properly, in 1916, as part of the simplication of the No. 1 Rifle to the new No. 1, Mk. III *, the windage adjustment ability for the rear sight was removed but the sights often seem as though they should. Rear sights were originally matched to their rifle (but often replaced subsequently). If the push button and fine worm wheels are frozen and will not allow adjustment for height--I would recommend Kroil as a superior alternative--it loosens the rust and is a very light lubricant. Use a toothbrush to scrub the wormwheels which can be the culprit--sometimes a metal pick to remove fine bits of rust helps. Only as a last resort, disassemble as the parts are tiny for the slide assembly.

You can also get a sight leaf from brpguns.com for about $15 and the push button slide assembly for about $5 or so.
Good folks. http://www.brpguns.com/no-1-mk-3-receiver-bolt-sight-parts/
 
Another vote for Kroil ; along with Robert's suggestion of very light taps with a light hammer.... And give the Kroil a few hours to penetrate before any hammering occurs. I was gonna post a picture of the rear sight on my SMLE No. 1 , Mk. III but the Gunny beat me to it and he even has better pictures than what I have.
 
Thanks men,
I got the button operational. Now to get the fine adjustment freed up!
Thanks for the info!
 
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