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AR15.COM
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3/29/2009 5:13:42 PM EDT
I lost the nut to my ARMS #40 BUIS.  anybody know the size so i can pick up something to replace it? the smallest metric and inch sized nuts I found at lowes didnt work.
3/29/2009 9:10:32 PM EDT
[#1]
try 10-32?
3/30/2009 3:06:40 AM EDT
[#2]
I had a guy loose one during a class.  He called up the nice folks at ARMS and they sent him one.  Might as well get the right part.
http://www.armsmounts.com/default.asp?mode=contact
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