This Tenebraex amber see-through objective flip cover provides protection to your lens and flips up out of the way when it is time to shoot and includes an adapter ring. Fits the Following Scopes: Vortex Razor HD Gen II 4.5-27x56Zeiss Victory V8 4.8-35x60Fits the Following Sightron Scopes: SIII (FT) 10-50X60SIII SS (LR) 10-50X60SSIII SS (LR or FT)SSVED 10-50x60SVSSED 10-50x60 Tenebraex Objective Amber Flip Cover w/ Adapter Ring for Vortex Razor HD 4.5-27x56 VR0056-ACR