Tenebraex Vortex Razor HD Gen II 4.5-27x56 ARD flip cover compatible VR0056-ARD comes with anti-glint capabilities that helps protect the optics glass from sand, dirt and grime. It also protects the lens from scratches and damage, and serves an inexpensive, retrofittable, field-practical way of reducing objective lens glare and reflection. The ARD is rendered complete with a unique geometry, flip cover compatible design, and cutting-edge honeycomb material to hide reflections from optical surfaces. The installation of the Tenebraex VR0056-ARD anti-reflection device adds to the life of the scope it is paired with. It is especially made to fit Vortex Razor HD Gen II 4.5-27x56 rifle scopes.