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Vortex Defender Flip Cap Eyepiece (40-46mm) E-10

SKU E-10


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List Price $34.99
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The Vortex Defender Flip Cap Eyepiece E-10 fits all Vortex riflescopes except the 1-inch tube ViperĀ® model VPR-M-01BDC, VPR-M-04BDC and VPR-M-03BDC.


  • Item ConditionNew
  • Product TypeLens Covers
    Scope Accessories
  • UPC875874005877
  • MPNE-10

Customer Reviews

Average Rating
May 28, 2022

These are high quality covers. Rubber sleeve slides over the scope and holds securely. Now I need 3 more sets of them.

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July 11, 2020

very well made. fit great look great . it would be nice if there were an option to add a D.O.P.E chart for the cap when ordering

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February 21, 2024

Was hard to find these in a pair, so contacted Vortex, and was told of a seller that had both. Better than expectations. Engineered, and made well. Not just cheap plastic. I like that the caps flip right over to just about flat on the scope. Made of stretchy rubber, and a perfect fit for Viper PST Gen ii 5-25x50

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February 7, 2023

This is similar to my other review for the larger cap, with some differences. It's basically got a rubberized tube, so it can stretch onto tubes of different sizes. You can yank it on, to where the harder portion of the flip cap is flush to the end of the scope tube. My biggest complaint is that you completely lose access to the focus ring. Yes, most of the time, the focus is fine. But when shooting max magnification, I very often need to adjust it a bit. Maybe because I'm 60+ years old. I'm disappointed that Vortex doesn't make something better. The interior of the focus ring is threaded. I'm running a Vortex 3-18x50. When someone is running a scope that costs more than $1,500, you would think Vortex would come up with something that could be threaded into focus ring, so you can still be able to make minor adjustments to the focus and was metal. I also have Luepold scope, and really like their scope flip cap. I will likely try to see if I can get a set of Leupold flip caps to replace these, or at least the one so I can get access to the focus.

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September 6, 2022

I bought a set of these. This is the ocular cap as opposed to the objective I reviewed first but the review is the exact same. They're superior lens caps. They kick the shit out of butler creek but the latch fades compared to Tenebrex. However...the rubber sleeve attachment system, while basic and cavemanish...is rock solid. It won't move for anything once the rubber is snugged. Make sure you don't cant your cap. I'm likely to buy these for another scope simply because they'll fit, stay on and stay closed.

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August 30, 2022

Far prefer the formed, rubberized product over the market-leader's hard plastic products. I've broken a couple B.C. front caps, but have never even stressed a Vortex lens-cap.

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December 17, 2021

easy to install, no issues

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August 17, 2020

Hold on tight and looks great.

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March 26, 2020

Had to trim to fit but works fine

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March 12, 2020

Had to trim it to fit around illumination dial otherwise fine

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March 12, 2020

Had to trim it to fit around illumination dial otherwise fine

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September 17, 2019

Great Flipcaps

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July 31, 2022

Fits good, works as intended, overall great add on to my scope.

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March 4, 2019

Great tool.

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