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  1. New Member Introductions
    My name is Rick, I am obvious a new dude to SIG 556 XI rifles. I have never joined a thread before and not super chatty, that aside I do like helping helpful people. I have put together several AR10 and custom .308 bolt guns. Is there anything I should know to watch out for. 2017 carbon 16"...
    discussion parts problems reloads upgrades
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