Gray Ops CNC Athlon Bump Cover Gun Metal. Specifications for Gray Ops CNC Athlon Bump Cover: Manufacturer: Gray Ops CNC Fabric/Material: Plastic Features of Gray Ops CNC Athlon Bump Cover Easy slip on design with a removable front cover. While the front cover is closed the screen and all buttons are protected. Easy access to the charging port without removing the Bump Cover Bump Cover can stay on the Athlon while in use and will not affect accuracy or reliability. This was tested across centerfire rifle pistol rimfire air rifle and a bow with no differences recorded. Compatible with the Gray Ops Athlon Mount and Mount Kits. Package Contents: Gray Ops CNC Athlon Bump Cover Gray Ops CNC GO24-21: Athlon Bump Cover Gun Metal