Vortex® Viper Riflescope - 4-12x40mm BDC

• Superior 95% light transmission 
• Weather-resistant Precision-Glide Erector System
• XR anti-reflective coating eliminates image-degrading reflections

Long-range, demanding shots require the high-end performance features found in the Viper Series. Its superior 95% light transmission and advanced, fully multicoated optics offer stunning detail and colour differentiation. The Vortex proprietary XR anti-reflective coating eliminates image-degrading reflections and offers extraordinary brightness for a lifetime of trouble-free lens protection. Extra-low Dispersion (XD) glass objective lens enhances the resolution for true-to-life image viewing. Side knob parallax adjust allows quick and easy parallax adjustments with range numbers visible while in the shooting position. Precision-Force Spring System maintains a constant force throughout the entire range of motion – virtually eliminating change in spring pressure over time. Precision-Glide Erector System provides exceptional resistance to temperature change, corrosion, stress cracking and friction-induced wear. Waterproof and fogproof with argon gas purging. Solid one-piece aircraft-grade aluminum-alloy tube. Fast-focus eyepiece. Quick Reset Turrets. MAGView bar adjustment. 1-inch main tube.