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Firearm & Gun Forum - > Long Guns > Auto & Semi-Auto Discussion > AR-15 Discussion >

My AR-15 M&P build is complete!

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Old 08-15-2011, 12:56 AM   #11
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Join Date: May 2011
Location: Opelika,Alabama
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Originally Posted by Quentin View Post
MBUS is the name of the front sight that is on your gas block. The GB gets very hot when you fire a lot of rounds. We're wondering if the MBUS can handle that... Most people put a metal front sight on a GB.
Oh ok gotcha... yes it does fine. the flip up site is metal I think but I ran 400 rounds threw her and no probs. So all is well I think.

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