Moving down to the end of the Charging Handle, you can see its well machined with no rough edges, uneven areas, or gunked up anodizing. The only discoloration visible is from where I conducted dry fire drills on a well used upper before I took these shots. These are machined from 7075 T6 Billet, and are hard coat anodized per Mil-A-8625F, Type III, Class 2.