13 7 Fixed Sight AR Build
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AR 13-1080x810.png | Northwest Firearms
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13.7 : r/AR_15
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My new 13.7” : ar15
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Custom 5.56 Pinned & Welded AR-15 Rifle Upper 1...
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Pin on Ar 10
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13.7? 7.13? Close enough : r/ar15
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