I'm having a very hypothetical debate with myself about what barrel length to go for on my next carbine. I just sold my only AR (16" cav/cmmg middy)
been shooting my glocks a fair amount... and i've always had a fascination with short rifles. so i'm thinking now that i live in the wonderful free state of colorado, i may build up an SBR sometime in the next year or so.
basically longer is better for ARs as far as velocity and function go... so would a 12.5 be a good compromise? the 10.5's are cool, but what's the muzzle velocity? are they reliable?
i probably will not be running a can any time in the near future.



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