The Hawke AIRMAX 3-9x40AO AMX has a monolithic nitrogen-filled aluminum construction. The tube has a diameter of one inch, or 25,4mm.
The eyepiece has Fast Focus and the lenses are equipped with MC sixteen-layer protection. The nitrogen inside system makes lenses fog proof. The riflescope is also waterproof and shockproof. Inside the AIRMAX models is an etched AMX reticle.
Horizontal and vertical correction is in Minute Of Angle scale - one click equals ¼ MOA. The Capped Low-Profile Turrets keeps your setup safe and it will not change without the yours knowledge. Parallax correction is handled through a control ring behind the objective; its range is 10 yds to infinity. Variable magnification from 3-9x is particularly suitable for less powerful rifles - for example, small-bore rifles or air rifles. The riflescope is in the second focal plane.