My primary concern would be the duracoat finish. It doesn't even begin to compare with hard anodization. The MagazineParts.com rail is currently priced @ 32.95 less 15% for a price of $28.01.
We space the rail off of the gun with aluminum spacers as this leaves the least amount of evidence that there was a rail on the gun. Every other rail on the market leaves an outline of itself where it was mounted to the receiver.
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