Use both iron sights and optics without reconfiguration. No raised cheekpiece required for proper hold. Absolute stability on the gun. Self-centering for optimum alignment. Your UltiMAK mount never needs to be removed to clean your firearm. Low profile design stays out of your way. Drop-in installation-- no gunsmithing required (some stock forends require minor inletting). 100% American made. Add very little weight to your rifle (installing the M9 on an M70 AK having synthetic furniture actually REDUCES the weight of the rifle). Made of strong, lightweight, solid, hard anodized aluminum. Transform your rifle into a very handy, modern and capable sport / hunting / defense / combat weapon with ease!