This Swarovski X5i 5-25x56 riflescope with BRM-I+ reticle features newly designed turret and inversion systems built with stainless steel components, a patent pending spring retention and lever system, 80 clicks per revolution, rugged main tube with built up wall thickness, elevation turret with viewing window, subzero allowing 40 clicks below a pre-set zero, parallax correction from 50m to infinity, and Swarotop, Swarodur, and Swaroclean coatings.