I use 10.5" Rock River Arms barrel for my 9mm AR upper. I like having the full carbine-length sight radius actually.
I use 10.5" Rock River Arms barrel for my 9mm AR upper. I like having the full carbine-length sight radius actually.
Friend has a 5" ADCO barrel he almost exclusively runs reloads through. No problems so far.
I have shot both through a 16" barrel, but I don't own an AR9 16" upper currently. At 16" you have lots of options, but I'd jump on the Faxon one right now given the price http://faxonfirearms.com/16-taper-9m...back-4150-qpq/
http://www.spintaprecision.com/sale/?sort=priceasc
Some blems for dirt cheap there.
I like the Faxon Barrel for 9mm
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