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Posted: 6/27/2011 6:48:12 PM EDT
Is there a how-to on how to r&r the front sight/gas block on an M4? If so where can I find it? I have looked, but I am not very familiar with this forum and can't find it. I want to replace the current handguard with a free-float unit.

Thanks in advance.
Link Posted: 6/27/2011 7:19:00 PM EDT
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