Thread: SBR AR15 barrel length?
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  #12  
Old 01-06-2012, 11:27 PM
Retooferab Retooferab is offline
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Join Date: Jul 2010
Posts: 42
10.5" pistol position port. I only shoot subs and it works every time! 8.6gns of N110 with 220gn SMKs.
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