This US Optics ER25 5-25x58 riflescope with MDMOA reticle features a turret parallax left side focus, low profile rapid focus eyepiece, matte black type III hard anodizing, 12 position digital illumination, US#3 1/4 IPHY windage knob, and a EREK 1/4 IPHY elevation knob with 110 clicks per revolution.