Quentin Defense makes billet upper and lower receivers for AR-15s. Of course they make standard black but they recently introduced two new colors: Gun Metal Gray and OD Green. Normally, I really don’t care how a rifle looks but I just had to post some pictures of these new colors. The Gun Metal Gray looks especially sharp.
These new color finishes have the same excellent wear resistance as their black counterpart because they are also mil-spec hard anodized. They are more than just nice to look at, they are also very functional.