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AR15.COM
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9/27/2004 4:46:04 AM EDT
What is the purpose of the T marking on some upper receivers?

What is the idea behind it?

9/27/2004 4:55:58 AM EDT
[#1]
They are for reference. Use them for quick release optics. At least that's what I use them for.
9/27/2004 5:00:04 AM EDT
[#2]

Quoted:
They are for reference. Use them for quick release optics. At least that's what I use them for.



+1
I have them on two of my AR's  They make putting the optics in the same place so easy.


Plus they make the gun more tactical.
9/28/2004 9:13:14 AM EDT
[#3]
quarterbore.com/kac/kacrisras.html
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