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Old 07-21-2010, 19:28   #1
Senior Member
Join Date: Sep 2009
Posts: 598
1st AR build, how do i "square" the upper?

i read in a previous post where a guy had a problem getting his iron sights to line up after replacing his upper with a flat top, in that post i saw a reference to squaring the upper.

i just bought a VLTOR MUR-1A and plan on putting a Daniel Defense 16" 1:7 barrel on it with a Troy MRF 14" free float rail system. i am hoping with everything i read about VLTOR's quality that the upper will be previously squared, if not, how do i go about makign it so?


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