This US Optics LR17 3.2-17x44 riflescope with GAP MIL reticle features a turret parallax left side focus, low profile rapid focus eyepiece, matte black type III hard anodizing, 12 position digital illumination, US#1 .1 mil windage knob, and a EREK .1 mil elevation knob with 110 clicks per revolution.