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AR15.COM
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2/18/2006 11:47:49 AM EDT
I was looking to put a KAC 600M flip up rear site (buis) on my flat top and I was wonder what I should put as the front flip up buis.  I have the gas block with a rail on my ArmaLite M15M4, Stainless Barrel.  I was wondering if there would be alignment problems being on the gas block and not on the free floating tube.  My tupe is smooth with no rails.  I am new to this so any help will be appreciated.  Thanks.
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