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1/25/2018 7:38:29 AM
Posted: 1/6/2006 12:15:12 PM EST
I recently purchased an ARMS #40 BUIS for my RRA 9mm AR. I saw on the box after I installed it that it comes set on the zero for M16. Alhough while I was putting it on I messed with the knob so I'm sure it is off zero. Basically is what I want to know is, how do I zero this thing in? What distance do I need to be at? Also which aperture do I use? The small one, or the bigger one?

Link Posted: 1/6/2006 2:32:30 PM EST
Link Posted: 1/6/2006 3:21:00 PM EST
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