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Old 07-17-2013, 1:13 PM
dragon7 dragon7 is offline
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Default Cross pinning AR gas block

Do I really need to cross pin my AR gas block? I see many AR builders recommend it. Is it just overkill? My other ARs have set screwed gas blocks that have never come loose. I understand in military arms it would be desireable. Does the military actually cross pin their gas blocks?
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