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#1 fizzix



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Posted 25 November 2013 - 03:22 PM

Having a difficult time choosing a rail length for my lm4c. I plan on running a Noveske KX3 amp but want it to be flush against the rail. The specs for the lm4c give a 10.5" barrel length. Does this mean I should get a 10.5" rail or a 10" rail for it to be flush? I'm scared if i get a 10.5" rail that the amp wont fit. Help would be appreciated.

Also any thoughts on going with a 12" rail instead and running a 1.5" extension.

Thanks in advance

#2 Rockhound117



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Posted 25 November 2013 - 05:00 PM

If you run a longer outer barrel your inner barrel won't be flush. Not sure about whether or not it would fit inside of a Daniel Defense free floating rail but it should fit inside of a Noveske rail. Depends on what you are looking to equip on your rifle.

Edited by Rockhound117, 25 November 2013 - 05:02 PM.

#3 akiraspeedstar



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Posted 25 November 2013 - 11:57 PM

A 10" rail will end right at the beginning of the KX3. The body of the KX3 won't be flush with the rail. You'd need a 10.5" rail (not sure if they make one) or an 11" rail and the SOCOM Gear KX3 which has a smaller outer diameter.

#4 BeachEMT



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Posted 26 November 2013 - 01:06 AM

I have a 10" rail with KX3. Like Akira said, the RIS system with just cover the threads. An 11" rail system should cover up about half the can. I would look at the Troy Alpha or DD MRF (Madbull makes replicas of both). They should have enough space.

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