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SKU#E-10 Vortex
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Vortex Defender Flip Up Cap (Eyepiece)

Available soon Notify me when back in stock
Price shown excludes VAT. The applicable VAT rate for your delivery country will be calculated and added at checkout.
  • Virtually Indestructible: Made from rugged, impact resistant polymer to survive the harshest field conditions.
  • Locks Flat: High tension spring loaded hinge snaps open and locks flat against the scope body for an unobstructed view.
  • Three Stop Eyepiece: Eyepiece model (E-10) features three open positions (vertical, 45°, and flat) to easily read custom dope charts.
  • Weatherproof Fit: Flexible, rubberized collar stretches easily for a secure, slip, free, and dustproof seal.
  • Broad Compatibility: Designed to fit Vortex scopes as well as matching outside diameters on other premium optics.
  • Comprehensive Sizing: Available to fit a wide range of scope measurements: Eyepiece (E-10): 40–46 mm 24mm Obj (O-24): 28.25–31.25 mm 32mm Obj (O-32): 38–41 mm 40mm Obj (O-40): 45.5–48.5 mm 44mm Obj (O-44): 48–53 mm 50mm Obj (O-50): 55–59 mm 56mm Obj (O-56): 62–66 mm
images/assets/pdp-refresh/delivery-clock.svg We aim to dispatch in-stock items to our Ireland-based Logistics Warehouse for EU dispatch within 1-3 working days. images/assets/pdp-refresh/UK-retailer.svg Authorised UK Retailer
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NO IMPORT FEES
14 DAY FREE RETURNS
EXPERT SUPPORT
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Product Information FIND OUT MORE
DESCRIPTION

Vortex Defender Flip Up Cap (Eyepiece)

The Vortex Defender Flip UP Cap (Eyepiece) 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 boneyard.

The E-10 cap has three stop positions. The first vertical, to put your dope disk (optional accessory) literally right in your face. The second at a 45° and the third at 90° to lay flat back.

The Vortex Defender Flip Up E-10 fits all Vortex® Riflescopes except the 1-inch tube Viper® model VPR-M-01BDC, VPR-M-04BDC and VPR-M-03BDC and range of other riflescopes that have an eyepiece with an outside diameter of 40-46mm.

SPECS
  • Compatibility Fits most Vortex riflescopes, excluding 1-inch tube Viper models VPR-M-01BDC, VPR-M-04BDC, VPR-M-03BDC
  • Eyepiece Outside Diameter 40–46 mm (1.57–1.81 inches)
  • Stop Positions Vertical, 45°, 90°
  • Mechanism Snap-flat spring
  • Durability Virtually indestructible design
FEATURES
  • Virtually indestructible design built to withstand heavy use and harsh conditions
  • Snap-flat spring mechanism keeps your line of sight unobstructed when the cap is open
  • Three stop positions (vertical, 45°, and 90°) for versatile viewing angles and dope disk placement
  • Secure, snug fit compatible with nearly all Vortex optics eyepieces (40–46mm diameter)
  • Reliable and durable alternative to standard flip caps prone to breaking
  • Optimised for tactical and field use, ensuring long-lasting performance and convenience
WHAT'S IN THE BOX
  • Vortex Defender Flip Up Cap (Eyepiece)
FREQUENTLY ASKED QUESTION(S)

1. What does the Defender eyepiece cap do

It protects the eyepiece (rear lens) of your scope from dust, dirt, moisture, and scratches

2. What size does it fit

It fits eyepieces with an outside diameter of approximately 40–46mm (1.57–1.81 inches)

3. Is it compatible with all Vortex scopes

It fits most Vortex riflescopes, with a few exceptions such as certain 1-inch tube Viper models

4. How is it installed

It uses a simple press-on friction fit that secures firmly to the eyepiece housing

5. What makes it different from objective caps

This version is specifically designed for the rear (ocular) lens, rather than the front objective lens

6. Does it open easily while shooting

Yes, the spring-loaded hinge allows quick, one-handed flip-up operation

7. What are the three stop positions

It can lock in vertical, 45°, or fully flat (90°) positions for flexibility and visibility

8. Can it hold a dope disk

Yes, the vertical position allows you to attach a dope disk for quick ballistic reference

9. Will it block my view when open

No, it’s designed to stay flat and completely out of your sight picture when flipped open

10. What warranty does it come with

It is covered by the Vortex VIP Lifetime Warranty, which is unlimited, unconditional, and transferable

WARRANTY
  • Vortex VIP Lifetime Warranty
DELIVERY & RETURNS
Shipping to Europe

Delivery costs & estimated arrival

Find your country below for the delivery charge and how long your order should take to reach you. All orders ship with FedEx. Estimates are in working days and exclude weekends and public holidays.

Country Up to 2kg 2kg – 30kg Estimated delivery
Order under €350 Order €350 & over Order under €350 Order €350 & over
Austria€11.95€26.95€26.95€26.955-7 working days
Belgium€8.95€14.95€14.95€14.954-6 working days
Bulgaria€11.95€31.95€31.95€31.957-9 working days
Croatia€11.95€31.95€31.95€31.956-8 working days
Cyprus€14.95€89.95€89.95€89.95Contact us
Czechia€10.95€21.95€21.95€21.955-7 working days
Denmark€10.95€21.95€21.95€21.954-6 working days
Estonia€11.95€31.95€31.95€31.956-8 working days
Finland€11.95€26.95€26.95€26.955-7 working days
France€10.95€21.95€21.95€21.954-6 working days
Germany€8.95€14.95€14.95€14.955-7 working days
Greece€11.95€31.95€31.95€31.958-10 working days
Hungary€11.95€31.95€31.95€31.955-7 working days
Ireland€6.95€6.95€8.95€8.952-4 working days
Italy€10.95€21.95€21.95€21.955-7 working days
Latvia€11.95€31.95€31.95€31.956-8 working days
Lithuania€11.95€31.95€31.95€31.956-8 working days
Luxembourg€11.95€31.95€31.95€31.955-7 working days
Malta€14.95€89.95€89.95€89.95Contact us
Monaco€10.95€21.95€21.95€21.954-6 working days
Poland€10.95€21.95€21.95€21.955-7 working days
Romania€11.95€31.95€31.95€31.956-8 working days
Slovakia€11.95€31.95€31.95€31.955-7 working days
Slovenia€11.95€31.95€31.95€31.956-8 working days
Spain€11.95€26.95€26.95€26.955-7 working days
Sweden€11.95€26.95€26.95€26.955-7 working days

Returns & withdrawal

Which option you use depends on why you are sending the item back.

Changed your mind?

You have 14 days from receiving your order to withdraw from your purchase. Use our Withdrawal from Contract form to tell us. It is the quickest way, and we will then email you a free returns label.

If you would rather post the item back yourself to our returns address in Ireland, you pay the postage. Full details are on our Returns page.

Withdrawal from Contract

Faulty, damaged or wrong item?

If your item arrived faulty, damaged or not what you ordered, please follow the steps on our Returns page. We cover the cost of returning these items.

Full details of all our return options are on that page.

Returns page

Delivery prices are shown in euros and confirmed at checkout.

EU PRODUCT SAFETY AND COMPLIANCE

Product safety information is available on request from our customer service team.

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