Sightron SIII and S-TAC Sunshade 50MM Aluminum Construction 3 inches long Matte Black to match riflescope See below for compatible scopes The 50mm sunshade with product code #70006 is compatible with the following riflescopes: SIII scopes with a 50mm front objective SII Big Sky 50mm scope SIH scopes with a 50mm front objective S-TAC scopes with a 50mm front objective