Butler Creek Multi-Flex Flip-Open Rifle Scope Objective Lens Cover Black 40.9 - 41.8mm. Butler Creek designed these Rifle Scope Accessories with multiple sizes to provide a custom waterproof and airtight fit on your riflescope. These Butler Creek Multi-Flex Flip-Open Flexible Rifle Scope Objective Lens Covers quietly open with a simple flick of the thumb to keep you concealed on the hunting grounds. Ensure your favorite glass stays in mint condition by equipping a Butler Creek Multiflex Flip-Open Protective Scope Cover - Objective Lens. Features of Butler Creek Multi-Flex Flip-Open Rifle Scope Objective Lens Covers: Same basic features and design as standard Flip-Open series Tight flexible collar provides custom fit for multiple scopes Waterproof airtight protection Covers open silently with the flick of a thumb Package Contents: Butler Creek Multi-Flex Flip-Open Rifle Scope Objective Lens Cover Butler Creek Multi-Flex Flip-Open Rifle Scope Objective Lens Cover Black 40.9 - 41.8mm 31719