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EMP Front sight pin working loose.


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Old 05-16-2017, 10:34 PM   #1
CClowers2
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Default EMP Front sight pin working loose.

A minor problem with my 3" .40 S&W EMP. The front sight 'stake pin" is beginning to patrude about 2mm above the top of the front sight. Is this pin threaded or merely driven in place? I hate to hammer & punch it back in/down for fear of damaging the tritium vile. I am soliciting advise as to the proper fix before this "pin" ends up in the dire, never to be seen again.
Thanks in advance,
CClowers2


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Old 05-17-2017, 02:39 AM   #2
larry1096
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A minor problem with my 3" .40 S&W EMP. The front sight 'stake pin" is beginning to patrude about 2mm above the top of the front sight. Is this pin threaded or merely driven in place? I hate to hammer & punch it back in/down for fear of damaging the tritium vile. I am soliciting advise as to the proper fix before this "pin" ends up in the dire, never to be seen again.
Thanks in advance,
CClowers2
If it's the pin which goes down through the sight into the slide, it's just to keep the sight from walking out of its dovetail; it should be a roll pin, and you can just tap it back down.


Larry


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Old 05-17-2017, 01:29 PM   #3
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Larry:
Correct, as you described. The key will be for me to GENTLY tap this pin back down into place w/o damaging the tritium vile. Thanks for your reply.
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Old 05-18-2017, 02:43 AM   #4
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Larry:
Correct, as you described. The key will be for me to GENTLY tap this pin back down into place w/o damaging the tritium vile. Thanks for your reply.
R/CClowers2
It should be fairly easy to tap back down; it shouldn't need walloping.


That said, the vials, while not indestructible, are fairly tough; I did things to my old duty gun that would have broken a hammer, and never lost a night sight.


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Old 05-20-2017, 03:22 AM   #5
megafiddle
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You can also minimize the shock to the vile by placing the slide on a heavy solid surface. The extra mass and solidity prevents the part itself from moving and concentrates all of the force on the pin. This is also helpful for installing and removing pins in general.
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Old 05-20-2017, 04:22 PM   #6
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When I have a sight pin "walk" out a bit I always add a small drop of Blue Loctite to it before tapping back in. This has help prevent it from happening again.
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Old 05-21-2017, 01:19 PM   #7
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ANDnutt:
Thanks for your post/reply. That's exactly what I did; a little Blue Loctite on the shaft of the pin before tapping it back. Also, I have just completed a 600 round break in period on my 3" .40 S&W EMP. No issues, the most reliable pistol I have ever owned! Good job Springfield Armory.



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