Hawke Sport Optics Airmax 30 Side Focus 4-16x50 AMX IR, Black The AMX Reticle offers multiple aim points, useful when shooting air guns with loopy trajectories. / Half Mil Dot spacing on the lower post provides increased aim points for long shots. The horizontal bars are calculated at 0.5, 1.5, 2.5, 3.5 and 4.5 mil spacing. Hollow posts are segmented into mil spacing and can be used for bracketing. / 16 layer fully multi-coated optics for exceptional clarity Side focus control for parallax adjustment to infinity / 30mm mono-tube chassis for superior strength Glass etched reticle with red illumination / Stepless rheostat offers total brightness control 1/4 MOA exposed, locking and resettable turrets / Fast focus eyebell and high torque zoom ring