Hawke Sport Optics Airmax 30 6-24x50 Side Focus AMX IR Riflescope 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 The AMX Reticle offers multiple aim points, useful when shooting air guns with loopy trajectories.