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Centerfire Rifles - Semiautomatic or Gas Operated Centerfire rifles, carbines and other gas operated rifles.

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  #1  
Old 07-06-2007, 9:10 AM
trfcrugby trfcrugby is offline
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Default Front sight pins

What would cause the two pins that hold the front sight of an AR to work loose? I've got about 500 rounds through this rifle, and when I got home last night I noticed that the two pins that hold the front sight/gas block in place were both sticking out. I tapped them back in, but something tells me they aren't supposed to do that.
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Old 07-06-2007, 9:17 AM
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ar15barrels ar15barrels is offline
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Originally Posted by trfcrugby View Post
What would cause the two pins that hold the front sight of an AR to work loose? I've got about 500 rounds through this rifle, and when I got home last night I noticed that the two pins that hold the front sight/gas block in place were both sticking out. I tapped them back in, but something tells me they aren't supposed to do that.
Perhaps they were never installed tight in the first place?

I have never heard of taper pins working out on their own.
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Old 07-07-2007, 1:46 PM
trfcrugby trfcrugby is offline
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So what would be the proper way to install them? I tapped them back into place. Should there be some Loktite on them?
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Old 07-07-2007, 8:20 PM
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So what would be the proper way to install them? I tapped them back into place. Should there be some Loktite on them?
Just tap them into place good and tight.
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AR work: www.ar15barrels.com
Bolt actions: www.700barrels.com
Foreign Semi Autos: www.akbarrels.com
Glock, XD and M&P pistols, Benelli and Remington shotguns: barrel, sight, trigger and receiver work.
Most work performed while-you-wait, evening and weekend appointments available.
Founding member of the CAPRC
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