The adjustable rear sight flipped-up. It can be marked up to 600 yards, which seems a little optimistic…. The forward vertical grip is American walnut, as is the pistol grip and stock, as well as the wood on my sample was very nicely figured. The forward grip is hooked up https://beckettndmub.blogdal.com/33306057/5-easy-facts-about-buy-diamondback-firearms-db15eb-ar-15-semi-auto-rifle-online-described