The XPF Series 10-40x50 Dual-Illuminated rifle scope with side parallax and left turrets is milled from one solid piece of aircraft grade aluminum to withstand constant heavy recoil. It is nitrogen charged with weather resistant seals making them fog proof and shock-resistant and the green fused multi-coated lens provides superior light. It also has dual-illuminated (red, green) reticles with adjustable rheostat for brightness control, side parallax adjustment to help eliminate error from movement, and wind and elevation adjustment. Fast target acquisition and safety from heavy recoil provided by 2.5-3.5 inch eye relief. Weaver/Picatinny 1913 ring mounts are included.