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5/7/2009 12:29:33 PM EDT
What size is the rear peep on a SOCOM 16?

Availability: Can you buy the rear peep from a vendor/SAI?



Thanks
5/8/2009 5:29:24 AM EDT
[#1]
Holy moly, that is a large aperature for sure.

Brownells carries SAInc parts.  Check there.
5/8/2009 6:07:28 AM EDT
[#2]
I found one at XS Sights, but it's $60.00

Maybe I can drill out one of my spare ChiCom peeps
5/8/2009 6:37:13 AM EDT
[#3]
The diameter on a USGI rear sight aperture is 0.069 " + 0.005 ".  The M1A SOCOM rear sight aperture diameter is 0.125 ".
5/8/2009 7:51:25 AM EDT
[#4]
Quoted:
The diameter on a USGI rear sight aperture is 0.069 " + 0.005 ".  The M1A SOCOM rear sight aperture diameter is 0.125 ".


Sounds like a USGI aperture meets 1/8" drill bit ($2).
5/8/2009 8:06:41 AM EDT
[#5]
Be advised that the USGI is heat treated to 40 to 45 HRC all the way through.
5/8/2009 10:31:29 AM EDT
[#6]
Then you are going to want a 1/8" carbide drill and a lot of speed and feed!
5/8/2009 11:01:26 AM EDT
[#7]
Quoted:
Then you are going to want a 1/8" carbide drill and a lot of speed and feed!


Could one EDM it?  A buddy of mine used that to modify my NM sight knob to give me quarters in windage.
5/8/2009 1:29:56 PM EDT
[#8]
I learned of a easy modification that worked well for my Garand aperture.   Just fill the hole with blended JB weld, and when it's dry, drill the size hole you want.  It's not a permanent mod––you can remove all of it if you don't like it.
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