Cobra 3 – 9 x42mm


The Cobra AO 3-9X42mm is very popular with rimfire & air rifle shooters including heavy recoiling spring piston high FPE rifles but it is also perfectly at home on centerfire rifles.  The adjustable objective focuses at distances from 10 yds. to infinity.  The Cobra has fully multi-coated glass. These coatings were developed specifically for light transmission and distortion-free resolution.

It has a Mil-Dot reticle system for convenient target ranging.  It also has easy finger adjustable turrets with audible ¼ MOA clicks.  The nitrogen purged O-ring-sealed one-piece tube construction is waterproof and fogproof.


Cobra 3-9x42













Cobra 3-9×42 Specifications:

  • Magnification: 3x to 9x
  • Objective diameter: 42mm
  • Linear Field of view: 40 feet @ 100 yards (3x), 12 feet @ 100 yards (9x)
  • Eye Relief: 3.5” (3x), 3.2” (9x)
  • Adjustable Objective, 10 yds. to Infinity.
  • Windage and Elevation Click value, 1/4 MOA per click
  • Tube diameter: One piece 1 inch aluminum
  • Reticle: Mil-Dot
  • Turret: Low profile finger adjustabl



Cobra 3-9X42 AO