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[ARCHIVED THREAD] - Gas Block Extension Question

Posted: 5/7/2013 10:22:35 AM EDT

I want to change my stock 7" rail to a 12" quad rail. I have to remove the A2 front sight. I asked some friends and one says I need a low profile gas block and the other says I also need a gas block extension. Which is right?

Posted: 5/7/2013 10:46:34 AM EDT

[#1]

Low profile gas block..

Posted: 5/13/2013 7:41:45 AM EDT

[#2]

Topic Moved

[ARCHIVED THREAD] - Gas Block Extension Question

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