Flip up caps that will fit...

[drkphibr]

a Nikon Buckmaster 4.5x14 40mm? Looking for flip up caps that will fit this scope nice and snug.

[OpticsPlanet]

The eyepiece OD is 42.5mm
The objective OD id 49.3mm

There are three different sets of flip up caps by Butler Creek.

Multi-Flex is more flexible:



Eyepiece 16-18

http://www.opticsplanet.com/butler-creek-multi-flex-flip-open-riflescope-eyepiece-lens-covers.html

Objective 30-31

http://www.opticsplanet.com/butler-creek-multi-flex-flip-open-rifle-scope-objective-lens-covers.html

Flip-Open is a harder plastic:



Eyepiece 17

http://www.opticsplanet.com/butler-creek-flip-open-scope-covers.html

Objective 29

http://www.opticsplanet.com/butler-creek-flip-open-scope-covers.html

Blizzard has transparent windows*:



Eyepiece 5

http://www.opticsplanet.com/butler-creek-blizzard-see-thru-scope-covers.html

Objective 8

http://www.opticsplanet.com/butler-creek-blizzard-see-thru-scope-covers.html

In my experience, sooner or later the windows fall out of the Blizzard caps. My personal preference is for the Multi-Flex.

Mark H.