EOTech Vudu 1-10x28mm Riflescope combines durability and precision into one high-performance optic! It features a one piece, aircraft grade aluminum tube for superior strength and shock resistance. The lenses are constructed from XC High-Density glass with multi-coatings for exceptional light transmission and outstanding edge-to-edge clarity. The Vudu’s elevation turret is exposed for making adjustments in the field, and uses a unique push-pull locking mechanism to prevent any accidental changes. When making adjustments, the turrets produce an audible and tactile “click” to assist the shooter in making the proper point-of-impact corrections.