Leupold Alumina Flipback Lens Cover Standard EP. Designed for Leupold scopes built after 2004 Alumina Flip-Back lens covers feature powerful neodymium magnets to hold them securely closed and the triple O-ring seals provide maximum protection from the elements. Constructed out of durable 6061-T6 aircraft grade aluminum they are precisely machined to allow for quick and easy operation and a low-profile position when open make these Flip-Back lens covers stand above the rest. The round objective and ocular models can be rotated so they can open in any direction. Specifications for Leupold Alumina Flipback Lens Cover Standard EP: Manufacturer: Leupold Finish: Black Matte Fabric/Material: Aluminum Color: Black Condition: New Fit: Leupold and Mark 4 Leupold VX-R Leupold Rifleman Leupold VX-3i Leupold VX-3 Leupold VX-2 Leupold VX-1 Leupold Mark AR Attachment Type: Screw Package Contents: Leupold Alumina Flipback Lens Cover Standard EP Leupold 59055: Alumina Flipback Lens Cover Standard EP 59055