BSA Optics Sweet 17 Riflescope utilizes trajectory compensation technology and a quick change turret system. The windage and elevation turrets have zero reset. This model has a 3-12x magnification, black finish, and 30/30 duplex reticle.The BSA Sweet .17 SP rifle scope is specifically designed for the .17 HMR. This series features side parallax adjustment from 10 yd to infinity, fully multicoated lenses, 3 inches sunshade and fast focus. The Sweet 17 SP features an elevation turret ballistically calibrated for a 17 and 20 grain cartridges. Features: Fully multi-coated lens 10 yd infinity parallax setting Side parallax adjustment 1 year warranty