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[–] zaitcev 0 points 1 point (+1|-0) ago 

I don't think it makes sense to put Cr finish on Al receiver. Anodizing it is more common because it will not peel. I am quite ignorant of chemistry, but I know that trying to put chrome on aluminum wheels often ends with peeling. The wear inside the barrel is entirely different, even near a gas port.

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[–] 0fsgivin ago 

ah i see...Thanks completely new to AR-15s just trying to learn up before I make any purchases.