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AR15.COM
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1/10/2009 1:31:33 PM EDT
I recently got a new LMT 16" A3 upper with 1AI1 marked on the FSB.  Is this the same as the F marking?  Will the sights be on with the standard carry handle, or do I need to get a new front sight post?

Thanks
1/10/2009 5:11:21 PM EDT
[#1]
LMT uses "F" FSB but they don't put the F on it.  It's GTG.
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