Nightforce scope Question

[700man]

I finally got a Nightforce 5.5-22x56 NXS scope, but I can not find a scope cover to fit the objective lens. Does any one know the size and the best brand of scope lens protector to get, and where to get them. Thanks

 

[Eaglet]

Click me!

 

[Down Under Hunter]

Butler Creek flip up- No 51 on objective lense !

DUH

 

[700man]

Thanks for your help, 700 man