Adjustable Objective Riflescope

Vortex Crossfire II 4-12X40 Adjustable Objective Riflescope

Vortex Crossfire II 4-12X40 Adjustable Objective Riflescope

Adjustable Objective (AO):

An adjustable objective (AO) riflecope features a dial around the objective bell of the scope, or a knob on the side of the turret housing, that allows the user to adjust the scope’s parallax to a certain distance. In other words, the shooter can bring very near or distant targets into the same focal plane as their reticle in order to eliminate parallax and provide the best possible focus on the target.

Crossfire II 4-12×40 AO (Shown Above):

  • SKU: CF2-31019
  • Magnification: 4-12x
  • Objective Lens Diameter: 40 mm
  • Eye Relief: 3.9 inches
  • Field of View: 24.7-8.4 ft/100 yds
  • Tube Size: 1 inch:
  • Turret Style: Capped
  • Adjustment Graduation: 1/4 MOA
  • Travel Per Rotation: 15 MOA
  • Max Elevation Adjustment: 50 MOA
  • Max Windage Adjustment: 50 MOA
  • Parallax Setting: 10 yards to infinity
  • Length 13.6 inches: Weight 19.2 oz