has any one use the c series blackcell barrels? how did you like them? are they as good as they advertize? does the differnt tips matter or are they just for looks? wat size would you suggest?

not to sure, but personally im thinking of cutting my stock barrel just before the venting or maybe a bit after

I have a 14 inch stiffi barrel is the same barrel (like 90%)... its made by the same company and is also carbon fiber...
I LOVE mine...
i recomend the Cseries and i dont even have it

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