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Old August 09, 2018, 05:12   #1
Contadino
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Loose rear sight

The rear sight on my Aussie shakes like a two dollar ladder. What if anything can be done to tighten up the slop? It's tight in the dovetail its the sliding section that's the problem.
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Old August 09, 2018, 06:51   #2
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I have had luck squeezing the sight body in a vise. Be very, very careful....
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Old August 09, 2018, 07:47   #3
DakTo
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Replace the ball bearing, spring or both.
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Old August 09, 2018, 08:05   #4
Ragnarok63
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I think the rear sight on the L1A1 I'm almost done building is an Australian version. I can barely get mine to budge from notch to notch!

It does have what appears to be a new base(un-finished in the white)...and a black painted slider and folding leaf that looks used. I imagine mine must have a new spring in it as tough as it is to move up and down.
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Old August 09, 2018, 08:05   #5
Invictus77
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Quote:
Originally Posted by DakTo View Post
Replace the ball bearing, spring or both.
This, or sometimes just disassemble and clean them. They may just be "gunked up" and sticking.
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Old August 09, 2018, 08:06   #6
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I've tightened several by placing a small piece of metal behind the spring on the button. A small round piece, punched out by a Whitney punch works really well, but it could also be cut by hand. It increases the tension on the button's spring.
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Old August 09, 2018, 08:48   #7
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I tighten FAL all the time by squeezing them in a Vise. L1A1 seem more brittle. I don't recommend squeezing them, unless you're willing to risk snapping it.

New spring is the way to go.
New bearing, if it's in bad shape - but rarely does the bearing wear - it is hardened.
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Old August 10, 2018, 09:21   #8
DakTo
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Quote:
Originally Posted by Ragnarok63 View Post
I think the rear sight on the L1A1 I'm almost done building is an Australian version. I can barely get mine to budge from notch to notch!

It does have what appears to be a new base(un-finished in the white)...and a black painted slider and folding leaf that looks used. I imagine mine must have a new spring in it as tough as it is to move up and down.
Squirt a little WD 40 and let it sit for a few minutes before you disassemble the rear sight. (Don't lose the little ball bearing)
I only remember the white sight base on British arsenal repaired/refinisher L1A1's. They were beautiful imported parts kits around 1990.
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