The Vortex Optics Crossfire 6 - 18 x 44 AO Riflescope has low profile turrets, that are less susceptible to accidental impact damage and reset turrets, that allow re-indexing of the turret housing to zero after sighting in the riflescope - generally requires use of a coin or wrench. This model comes with Adjustable Objective (AO) that uses an adjustment mechanism on the objective lens to fine-tune focus for the purpose of reducing parallax shooting error.
The V-Brite reticle uses the Plex format along with battery-powered electronics to illuminate the central crosshair for better low-light performance. This reticle is good for hunters/shooters during extra-low light conditions. The solid one-piece aircraft-grade aluminum alloy construction of the Crossfire riflescope is outstanding in strength, rugged and shockproof. Neutral pressure nitrogen purging guarantees waterproofing and fog-proofing that withstands the elements at any elevation.