The Nightforce Clamp-On Power Throw Lever (PTL™) is designed for extremely fast and easy magnification changes from any shooting position, in any condition. No modifications to the riflescope are required.
Put it in the 11 for equal throw either way or put it on the 22 like I did so that when straight up your subtensions are ready to go for windage and holdover for those quick shots when not enough time to dial in.
Easy to put on. Makes changing power one fluid motion.