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Posted: 11/4/2009 6:52:56 AM EST
I am looking to replace the front sight with a low profile gas block, but I need to know the barrel's diameter. Does anyone know off-hand so I don't have to pull out my measuring tools?
Link Posted: 11/4/2009 7:48:57 AM EST
Link Posted: 11/4/2009 8:01:30 AM EST
Thank you very much,
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