Nightforce ATACR users can now make use of Tenebraex For Nightforce ATACR accessories in the form of the most rugged, well-made, protective flip-up lens caps on the market. These Tenebraex flip-up lens caps and Tenebraex adapter rings are manufactured to meet Nightforce specifications. Offering excellent protection against factors such as dust, pollution, sand, grime and the like, they provide extreme functionality in the field as well. The available list of accessories is inclusive of ocular and objective lens caps along with adapter rings.