It has a few features that are said to be upgrades vs the older D-740 pinnacle I have been using for years. Mainly the L3 Omni VIII tube that is rated handle 308 recoil vs the pinnacle tube 223 recoil rateing, better controls placement/access, better weapon mount, varible gain control (standard) and some folks say the glass in the eyepiece is better. I guess I will know soon enough