Visionking Rifle Scope 2.5-35x56 Trajectory Lock Tactical IR Hunting Military Riflescope Magnification: 2.5X-35X Objective lens: 56mm Field of View:(ft@100yds) 38-2.8 Eye Relief (inch): 4.4-3.5 This visionking 2.5-35x56 rifle scope with revolutionary super 14 times ratio magnification.It is the ultimate Magnification Ratio in the world.It also features the most accurate range finder reticle in the world.and has high shock resistance,can handle .338 ,and camera grade glass offer super good optical system that provide extreme good performance in all kinds of conditions. It is very perfect for military or tactical or hunting usage