Protect your Nightforce ATACR F1 rifle scope from roughest field and weather conditions by using Tenebraex tactical flip-up scope covers, KillFlash ARDs, Weapon Sight Polarizers, and adapter rings. Give your Nightforce riflescope rugged protection from optical reflections and roughest conditions. Get improved optical performance and enhanced image quality. Use Tenebraex Weapon Sight Polarizer to experience reduced reflected glare on glass, especially when shooting over water and snow fields and water surfaces. Choose the right Tenebraex accessory for optimum optical performance and protection. Choose the right Tenebraex accessory for optimum optical performance.