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Posted: 11/26/2007 8:54:20 PM EDT
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I'm looking into something like the KAC M5 RAS setup (Rifle length) for a 14.5" or 16" upper. I'm guessing I cannot use a NON Freefloat rail setup if I plan to use a low profile gas block and flip front BUIS, correct? From what I can tell, the freefloat goes on over the barrel nut and the non free float uses the front cap to mount as well as the delta ring? Am I close? |
You could use a NON freefloat with a gas block and a front flip up BUIS just not with a rifle length handguard. Which ever free float you buy will come with all necessary parts to install but you will replace existing barrel nut.
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Why is that? and I was planning on going with a non free float rail on one of the builds and free float on the other.
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On some you may not have to but most of the ones I've seen have their own barrel nut that has threads for the FF handguard to screw on.
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