Vortex Crossfire II

This model features the Dead-Hold BDC (Bullet Drop Compensation) reticle. It uses hash marks on the lower vertical crosshair to help you estimate holdover points for bullet drop and windage, which is particularly useful for hunting at varying distances.

Yes, it is fully waterproof and fogproof. The internal components are nitrogen purged and O-ring sealed, so you don't have to worry about internal fogging or moisture damage during wet conditions.

No, this specific model does not feature an adjustable parallax knob. It is factory-set for parallax-free shooting at 100 yards, which is standard for this magnification range and typical hunting applications.

The Crossfire II offers a generous 3.8 inches of eye relief. This is designed to keep your eye a comfortable distance from the eyepiece, which is especially helpful when shooting higher-recoil calibers.

This scope has a 1-inch main tube diameter. You will need to purchase a set of 1-inch scope rings that are compatible with the mounting rail on your specific firearm.

No, this model does not have reticle illumination. While the fully multi-coated lenses are designed to maximize light transmission for clearer images in dim conditions, the reticle itself is non-illuminated.