Keep your lenses clean and free from scratches with a set of Nightforce lens covers. Flip-Up lens caps are manufactured to Nightforce specifications by Tenebraex and provide exceptional protection for your riflescope. Made from heavy duty black plastic, these lens covers stay closed during movement, stay open when shooting, and are built to withstand extreme temperatures. Objective lens covers attach using a threaded adaptor in the front of the scope and the eyepiece lens covers clamp to the eyepiece. The rubber and metal lens cap sets are direct replacements for your NXS, Competition, and Precision Benchrest scopes.