This Tenebraex ocular 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 Meopta Scopes: MeoStar R1 1.5-6x42MeoStar R1 1-4x22MeoStar R1 4-12x40MeoStar R1 4-16x44Fits the Following Vortex Scopes: Crossfire II 1x24Razor HD LH 1.5-8x32Fits the Following Leupold Scope: Mark 4 MR/T 2.5-8x36 Tenebraex Black Ocular Flip Cover w/ Adapter Ring UAC020-FCR