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AR15.COM
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2/6/2010 12:49:44 PM EDT
I am wanting a  4 Rail Gas Block for my 16" Mid Length. Several companies sell them so I'm not sure which I want. Never seen one in person. Last one I looked at was Del-Ton. Liked it because it didn't look as big as some others. Also some I've noticed are 2 piece. Some have pins and some set screws. Any input on them I'd like to hear. Recommendations as to type, brand and so forth.
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