Vortex Optics Defender Flip Cap for Riflescope Eyepieces, Fits 40-46mm

SKU: VORE10 MFR: E-10
$29.99
$34.99
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Key Features

  • Protect your riflescope's eyepiece with this durable Vortex Optics Defender Flip Cap, ensuring longevity.
  • Experience a perfect fit with this riflescope cap, designed for 40-46mm eyepieces, offering secure coverage.
  • Enjoy quick, quiet operation with multiple stop positions, allowing instant access to your optics.
  • Shield your valuable optics from dust, dirt, and moisture with this weather-resistant Defender Flip Cap.
  • Effortlessly install and remove this user-friendly riflescope accessory, enhancing your outdoor experience.
  • Maintain clear sight picture with this essential Vortex Optics cap, preventing scratches and debris.
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Special Order?Estimated to Ship: 06/17/2026
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Reviews about this item

Review Summary

2026-01-14T19:00:00

Rated 5 out of 5

Vortex Optics Defender Flip Cap Eyepiece

The Vortex Defender Flip Cap Eyepiece does exactly what it's supposed to do. It fits well, stays in place, and provides solid protection for my lenses in the field and at the range. The flip-up design is convenient and doesn't get in the way when shooting. Overall, it's a quality product from Vortex. It protected my lenses, and I really can't complain. Simple, effective, and reliable.

Jacob C.

2025-12-16T19:00:00

Rated 5 out of 5

Perfect fit

Item was a perfect fit, easy to install and ease of use

Jaret R.

2025-12-07T19:00:00

Rated 5 out of 5

Flip Caps

Great fit

Marc S.

2025-11-12T19:00:00

Rated 5 out of 5

Great product

Vortex is the only brand I put on my guns

larry h.

2025-11-07T19:00:00

Rated 5 out of 5

Works well.

The fip cap works as well as many more expensive competitors.

John L.

2025-11-06T19:00:00

Rated 5 out of 5

Perfect

Fits my Eagle Strike perfectly. Keeps the rain out very well.

Kyle G.

2025-10-28T20:00:00

Rated 5 out of 5

Works flawlessly, easy install

Works flawlessly, easy install

Mark N.

2025-10-26T20:00:00

Rated 5 out of 5

.

.

Christopher G.

2025-10-24T20:00:00

Rated 5 out of 5

Great fit and quality

Great fit and quality

john n.

2025-10-23T20:00:00

Rated 5 out of 5

Must haves to pair with

Must haves to pair with your Vortex scoped hunting rifles! Haven't tried them on other branded scopes, but they do have a great fit on my Vortex's, no surprise there! Flips out of the way when you need it to!

Jacob R.

2025-10-18T20:00:00

Rated 5 out of 5

Easy Install

Just slips right on. I really like the sticker to put on the inside of the ocular scope end to keep track of the bullet drop hash mark. I always forget, but now it is there when you flip up the lid.

Paul D.

2025-10-12T20:00:00

Rated 5 out of 5

These are great for the

These are great for the field

Jordan B.

2025-10-12T20:00:00

Rated 3 out of 5

Could use revise.

Scope caps are alright but same as some other reviews I have had the Hardeware fall out from recoil I was lucky enough to be over concrete and retrieve the spring, bolt and nut and locktite them back and it's happened again ,I'm searching for something that would not do that. .

Ryan

2025-10-02T20:00:00

Rated 5 out of 5

Fit and protection

Fit and protection

Chad P.

2025-10-01T20:00:00

Rated 5 out of 5

Good bang for buck

Good bang for buck, hard to beat and the quality is good and lifetime warranty.

Josh N.

2025-09-28T20:00:00

Rated 5 out of 5

Awesome Scope Caps!

These caps were perfect for my Vortex Scope. Fit was perfect and they will protect the glass on my scope while chasing Elk through the mountains of SW Colorado.

Geoffrey C.

2025-09-18T20:00:00

Rated 5 out of 5

Scope Cap

I think the scope cap is good quality, good quality, and good price. Good Deal! Shipping was great as well

Jeffrey T.

2025-09-17T20:00:00

Rated 5 out of 5

As advertised, great.

As advertised, great.

Zachary C.

2025-09-12T20:00:00

Rated 5 out of 5

Happy to have it added

Happy to have it added to my scope.

Herbert J.

2025-09-10T20:00:00

Rated 5 out of 5

Fast delivery and great scope

Fast delivery and great scope protection

Kevin V.

2025-09-09T20:00:00

Rated 5 out of 5

Just what I was looking for

After trying several different covers, with no success, decided to order these. Covers are for a Vortex scope so figured they would fit. They fit perfectly! Covers are well made, open and close with no. problems. The material seems like it will last for a long time. Its a quality product from a company that Ive never had any problems with.

Mike T.

2025-09-05T20:00:00

Rated 5 out of 5

Have used in multiple matches

Have used in multiple matches now, fit is good and tight, and I like that when I open it, it flips open the whole way so it's fast.

Nathan Y.

2025-07-13T20:00:00

Rated 5 out of 5

Perfect Fit

They are nice and tight to apply. I don't think they are coming loose but I'm zip tying just for overkill. I like the addition of a dope card in the ocular cover. Because they are flexible material they will fit over the sunshade too.

Matthew C.

2025-03-15T20:00:00

Rated 3 out of 5

Bushnell Pro Match

Does not fit Bushnell Pro Match ED 5-30/56

Scott T.

2025-02-08T19:00:00

Rated 1 out of 5

doesn't stay on

This came with my strike eagle 1-8 ffp. As other reviewers stated, it simply does not stay on. It flips off when you try to flip it open, and it comes off when operating a milspec charging handle. I bought a charging handle with a large lever to solve the one problem, but the loose fit makes this only useful for storage. 2 handed operation is simply not acceptable. This is guaranteed to fall off during any kind of shooting sports. Unfortunately, the 1-8 ffp has such a large eye piece, its outside the size chart for butler creek. I will likely end up taping this on, to protect my glass during competition. As large as the eyepiece is, on my scope, I can't imagine this would stay on any of the vortex scopes.

James S.

2025-01-16T19:00:00

Rated 2 out of 5

Worst flip up scope covers ive ever used.

Love the scopes, hate the flip up scope covers. I have two strike eagle scopes, both came with flip up scope covers and you have to use two hands to open them one to hold the scope cover on the scope and the other to open the cap. That is if they haven't just fallen off while you were walking through a field. Worst designed scope caps I have ever used.

Matt

2024-12-30T19:00:00

Rated 5 out of 5

"Perfect Protection for Your Scope!"

The Vortex Defender scope caps are a must-have for any shooter. They keep your scope completely free of dust and rain, ensuring a clear view when it matters most. The tight fit gives you peace of mind-they stay put no matter the conditions. I love the two open positions, giving you flexibility depending on how you're using your rifle. Durable, reliable, and practical-these caps are worth every penny! Definitely an upgrade over Butler Creeks. I like them better than the more expensive Leupold metal caps as well.

Jon K.

2024-12-09T19:00:00

Rated 5 out of 5

I have set that has

I have set that has held up over 6yrs backcountry hunting so why not buy a set for all my scopes. Durable, lightweight, and protects!

Joshua H.

2024-10-17T20:00:00

Rated 5 out of 5

Great Buy

The eye cap fits snug over the scope, and the vertical position is cool for referencing any data you put on the inside sticker. I used it on a FFP scope, but I imagine you may have some issues rotating the rear focus if that's all that's on your optic.

Ernest H.

2024-09-16T20:00:00

Rated 5 out of 5

Keep the water, snow and dirt out!

Perfect for your hunting riflescope!

Brett P.

Vortex Optics Defender Eyepiece Specifications

  • Compatibility

    All Vortex Riflescopes except the 1" tube Viper model VPR-M-01BDC, VPR-M-04BDC and VPR-M-03BDC

  • Stop Positions

    Vertical
    45 degree
    90 degree

  • Outside Diameter

    1.57-1.81" (40-46mm)

  • UPC Code

    875874005877

About Vortex Optics Defender Eyepiece

This is the last flip cap you will ever need! Virtually indestructible, this cap will fit snugly on nearly all Vortex Optics and features a snap flat spring that will keep your line of sight unobstructed.

Rifle ranges the world over are littered with broken flip caps. This is one cap you will most likely never see in a flip cap bone yard. The E-10 cap is has three stop positions. The first vertical, to put your dope disk (optional accessory) literally right in your face. The second at a 45 degree and the third at 90 degree to lay flat back.

The E-10 fits all Vortex Riflescopes except the 1" tube Viper model VPR-M-01BDC, VPR-M-04BDC and VPR-M-03BDC.

Vortex Optics Defender Eyepiece Features

  • Fits Nearly All Vortex Optics
  • Flat Snap Spring Keeps Line of Sight Unobstructed
  • Three Stop Positions

Key Features

  • Protect your riflescope's eyepiece with this durable Vortex Optics Defender Flip Cap, ensuring longevity.
  • Experience a perfect fit with this riflescope cap, designed for 40-46mm eyepieces, offering secure coverage.
  • Enjoy quick, quiet operation with multiple stop positions, allowing instant access to your optics.
  • Shield your valuable optics from dust, dirt, and moisture with this weather-resistant Defender Flip Cap.
  • Effortlessly install and remove this user-friendly riflescope accessory, enhancing your outdoor experience.
  • Maintain clear sight picture with this essential Vortex Optics cap, preventing scratches and debris.

What's in the box:

  • Vortex Optics Defender Flip Cap Eyepiece
  • Vortex Optics Unlimited Lifetime Warranty