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Flip Cap Optic Cover

Size 4

One per Package

Flip Cap Optic Cover Click to Enlarge
SKU: FC-4
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MSRP: $12.99
*Prices in US Dollars
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Flip Cap Optic Cover — Size 4

The hinged flip cap optic cover makes it a snap to keep fine optics protected and flips completely back so the cap lies flat. Simply slip the rubber cover over the objective or ocular end of your optic.

Size 4 fits over a variety of optics with these outside diameters (OD):

  • 35-40 mm
  • 1.4–1.6 inches



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I have a Vortex Viper hs 4-16x50mm, what cap sizes would fit?

Asked by: Jake
You'll need a size 5 and size 7.
Answered by: Jon S.
Date published: 2018-01-08

I have a sightmark 10x40x56 triple duty scope what size flip covers do i need

Asked by: Joshua
You will want our Defender Flip Caps in sizes E-10 and O-56 for your scope.
Answered by: Mike at Vortex Optics
Date published: 2017-12-20

what flip up cap[s fits my 6.5 20x50 viper rifle scope

Asked by: master
Sizes 5 and 7 will fit your scope.
Answered by: Mike at Vortex Optics
Date published: 2017-12-06

what flip caps fit the Crossfire II 2-7x32 Rifle Scope, V-Plex Rimfire Reticle, CF2-31001R

Asked by: jlp53
Sizes 4 and 5 will fit your scope.
Answered by: Mike at Vortex Optics
Date published: 2017-12-02

Which flip up lens cover do I need do a CF2-31003

Asked by: annie
Sizes 4 and 5 will fit your scope.
Answered by: Mike at Vortex Optics
Date published: 2017-12-02

What size lens covers fit a Vortex Spitfire spr 1303 3x prism scope

Asked by: Mike 1234
The Spitfire 3x has its own flip covers, if you need a replacement you can give us a call at 800-426-0048 ext 6.
Answered by: Mike at Vortex Optics
Date published: 2017-11-03

what flip up caps would fit my Crossfire II 6-24x50mm AO CF2-31045 ?

Asked by: jude22
Our Defender Flip Caps in sizes E-10 and O-56 will fit your scope.
Answered by: Mike at Vortex Optics
Date published: 2017-10-16

What size covers will fit a Nikon prostaff rimfire 3-9x40 scope? Thanks!

Asked by: Tony
I could not find outside diameter measurements for your eyepiece and objective, if you can measure those you can compare the measurements to what is listed under each size on our website or give us a call at 800-426-0048 ext 5 with the measurements and we can tell you the sizes you will need.
Answered by: Mike at Vortex Optics
Date published: 2017-10-04
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