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freebug
10-12-12, 09:04
Does anyone had a Centurion C4 12" over a 14.5 barrel with a LPF gas block? Does this setup work?

I ask because the C4 12" was intended for a rifle length system and what I'm planning to do it to use it over a carbine LPF gas block.

Are there other options? KAC URX 2?

I like the C4 because it uses the standard barrel nut which would never let the barrel nut loose (gas tube prevents rotation). I have a DD Lite Rail (not installed yet for my 300BLK), and it seems that in the DD setup, that the barrel nut can loosen over time - is that correct?

sammage
10-12-12, 09:15
This thread here has a ton of info on the C4 rail. Should fit over most low profile gas blocks, but grinding on the GB might be required.
https://www.m4carbine.net/showthread.php?t=74894

freebug
10-12-12, 09:31
Thanks that thread answered my question. Order placed!