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#1
05-26-2009, 02:18 PM
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A question of rail systems
I was looking at the rail systems page of the KAC website (researching for a couple of custom AR carbine variants that I'm going to feature in a story) and they've got two different M4 rail systems shown. Does anyone here know the difference between the SOPMOD M4 carbine RIS and the M4 carbine RAS?
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"Everything is impossible until somebody does it - Batman RIP Kevin Conroy, the one true Batman 
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#2
05-27-2009, 02:24 AM
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Googling it found me this:
http://www.quarterbore.com/kac/kacrisras.html If I'm reading the article right, the RIS system is a two-piece system, while the RAS is a single piece. The RIS also doesn't clamp on the barrel as tight as the RAS, allowing for different barrel profiles to be used in conjunction with it.
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#3
05-27-2009, 08:36 AM
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Both are two piece and both are overrated. For that amount KAC is asking I would expect it to be free floating. Both rails are drop in. In others worlds no gun smiting are necessary.
http://www.bravocompanyusa.com/Tacti...Float-s/53.htm
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