Keep the optics of your riflescope safe with the robust Defender Flip Cap Objective 44 from Vortex. Designed for lenses with an outside diameter of 48.01-52.83mm, this cap will fit a wide variety of scopes. Also, it has a spring-loaded hinge to flip up and out of the way.
Viper HS: VHS-4305, VHS-4303
Viper HST: VHS-4308, VHS-4309
Diamondback HP: DBK-10019, DBK-10015
Crossfire II: CF2-31015, CF2-31013