Finish not as described - Aero Precision 9mm A2 Birdcage Flash Hider

The description on Optics Planet says this flash hider is anodized. Obviously that's wrong because you don't anodize steel, so i looked it up on Aero Precision's website. They say it's nitrided, and the picture shows a shiny black finish, which is exactly what i need for my nitrided 9mm AR-15 pistol barrel. What i received has a dull gray manganese phosphate finish, and, yes, it was in a sealed Aero Precision package. I could have gotten the wrong thing for half the price from a different brand. Anyway, i guess this would be fine if you needed to match a barrel with a manganese phosphate finish, but i dont think I've ever seen a 9mm AR-15 barrel in any finish other than nitrided.