Get from Amazon : br br Vortex killFLASH ARD Anti-Reflective Device with Flip Cap Cover - Size ARD-CAP-4 br br Fits 2-7x32 Viper 175-5x32 Diamondback Cro br Fits over optics with an outside diameter 14-16 in br Reduces objective lens glare and reflection br Protects the lens from scratches and damage br Sold one per package :