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5/11/2009 3:51:51 PM EDT
I received a second rear MBUS and have noticed that the adjustment knob will not turn on it. Is there something I am missing? My other MBUS adjust just fine and zeroed with no problems. I feel like there is something I am missing. I have also sent an e-mail to Magpul directly but was curious if anyone else had any feedback.
5/11/2009 4:22:10 PM EDT
[#1]
I have two and they both adjust fine.  Both seem to have a really strong detent such that they'll never move by being bumped.
5/18/2009 11:53:17 PM EDT
[#2]
UPDATE: Justin got me taken care of. Excellent customer service as usual from Magpul!
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