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AR15.COM
AR Sponsor
3/30/2005 7:21:12 PM EDT
What are the laser T marks on the top of a lot of the new uppers for???
3/30/2005 7:39:05 PM EDT
[#1]
They are basically for the accurate replacement of accessories once they have been taken off the rifle. BUIS on #2, Aimpoint/mount on #10, etc.

WIZZO
AR Sponsor