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Vortex Defender Flip-Cap Lens Cover — 13 models

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Vortex Defender Flip Cap, Eyepiece Lens 41.5 - 46mm, Black, E-10
Vortex Defender Flip Cap, Eyepiece Lens 41.5 - 46 mm w/ Vortex Defender Flip Cap Objective Lens 56, 62-66 mm
Vortex Defender Flip Cap Objective Lens 44, 48-53 mm, Black O-44
Vortex Defender Flip Cap Eyepiece Lens 40-46mm, Black E-10
1 of 1 videos
Vortex Defender Flip Caps
Vortex Defender Flip Cap, Eyepiece Lens 41.5 - 46mm, Black, E-10
1 of 4 images
Vortex Defender Flip Cap, Eyepiece Lens 41.5 - 46mm, Black, E-10
Vortex Defender Flip Cap, Eyepiece Lens 41.5 - 46 mm w/ Vortex Defender Flip Cap Objective Lens 56, 62-66 mm
2 of 4 images
Vortex Defender Flip Cap, Eyepiece Lens 41.5 - 46 mm w/ Vortex Defender Flip Cap Objective Lens 56, 62-66 mm
Vortex Defender Flip Cap Objective Lens 44, 48-53 mm, Black O-44
3 of 4 images
Vortex Defender Flip Cap Objective Lens 44, 48-53 mm, Black O-44
Vortex Defender Flip Cap Eyepiece Lens 40-46mm, Black E-10
4 of 4 images
Vortex Defender Flip Cap Eyepiece Lens 40-46mm, Black E-10

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Questions & Answers
Which caps do I need for the Viper PST GenII 5-25 x 50? Manufacturer Answer

The PST-II 5-25x50 will run the E-10 (eyepiece) and O-50 (objective) for optimal fit!

by Vortex, Manufacturer, December 21, 2022
See 2 More Answers
which size flip caps for crossfire iii 4-16x50 scope Expert Answer

The Vortex Defender Flip-Caps you need for the Crossfire II 4-16x50 are models O-50 and E-10.

by Hunter, Gear Expert, June 15, 2022
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Viper PST II 3x15 44mm Retical Flip Up Covers by Michael Drum, Verified Owner, June 3, 2025
Excellent fitment was my biggest concern, going with Vortex made my decision easier. I know durability would be next to nothing. Fast shipping, easy purchasing as always with Euro Optics.
1/1 found this helpful
Helpful Positive Review
E-10 & O-50 by V01D, Verified Owner, October 24, 2022
I got the E-10 and O-50 for the Vortex Diamondback Tactical 6-24x50. They fit great and look and feel like good quality. I thought I wouldn't be able to use the reticle focus with the eyepiece cap on, but then I realized I can roll/fold the rubber to...
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3/3 found this helpful
Helpful Positive Review
Excellent product but very slow deliver service. by David, Verified Owner, August 22, 2022
Sending products to customers using DHL e-commerce is like sending it on the back of a turtle. Ridiculously slow with no update as to progress staying three days or so at one location. There are better carriers to use.
3/3 found this helpful
Helpful Positive Review
vortex defender by mike, Verified Owner, February 5, 2024
Fits the oculus lens on my PST gen ii 1-6 perfectly.
1/1 found this helpful
Helpful Positive Review
Vortex Defender Flip Cap by Carlos, Verified Owner, September 4, 2016
I got the small size flip cap for the 40mm eye end of my Mk4 Leupold. The soft sleeve that goes over the tube is a bit loose. Still seems water tight, but I added a black wire tie to hold the cap securely in place. Also on my 700 bolt action the bolt...
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6/7 found this helpful
Helpful Positive Review
Vortex Defender Flip Cap by Ralph Nielson, Verified Owner, December 31, 2022
Great Flip Caps. I’ve been using these on a few of my Scopes. They are very lightweight and are held securely with the rubber mounting boot. They stay closed unless you want them open and are very easy to use. Thanks Vortex and Optics Planet.
2/2 found this helpful
Read All 179 Reviews

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Product Info for Vortex Defender Flip-Cap Lens Cover

Vortex Defender Flip Cap Lens Covers fit snugly on objective or ocular lenses on your Vortex Rifle Scope. These Rifle Scope Accessories by Vortex Optics protect your fine optics from dust, debris, and other elements. The Vortex Defender Rifle Scope Lens Cover has three stop positions, including vertical, 90 degrees to lay flat, and 45 degrees. For a great lens cover that not only protects your glass, but even enhances the usefulness of your favorite Vortex Rifle Scope, choose the Vortex Defender Flip Cap Lens Covers.image

The E-10 fits all eyepieces on Vortex® Rifle Scopes except the 1-inch tube Viper® models VPR-M-01BDC, VPR-M-04BDC and VPR-M-03BDC.

Specifications for Vortex Defender Flip-Cap Lens Cover:

Manufacturer: Vortex
Finish: Matte
Fabric/Material: Rubber
Color: Black
Condition: New
Country of Origin: USA
Quantity: 1

Features of Vortex Defender Flip-Cap Lens Cover:

  • Virtually indestructible
  • Snap flat spring for unobstructed line of sight

Package Contents:

  • Vortex Defender Flip-Cap Lens Cover

Vortex Defender Flip-Cap Lens Cover Orderable Models

List of Orderable Models

  • Vortex Defender Flip Cap Objective Lens 44, 48-53mm, Black, 1oz, O-44 , MPN: O-44 , UPC: 875874005884 , Code: VX-R2-DFEF-O-44
  • Vortex Defender Flip Cap, Eyepiece Lens 41.5 - 46mm, Black, 1.6oz, E-10 , MPN: E-10 , UPC: 875874005877 , Code: VX-R2-DFEF-E-10
  • Vortex Defender Flip Cap Objective Lens 50, 55-59mm, Black, 1.3oz, O-50 , MPN: O-50 , UPC: 875874005891 , Code: VX-R2-DFEF-O-50
  • Vortex Defender Flip Cap Objective Lens 56, 62-66mm, Black, 1.4oz, O-56 , MPN: O-56 , UPC: 875874005907 , Code: VX-R2-DFEF-O-56
  • Vortex Defender Flip Cap, Eyepiece Lens 41.5 - 46 mm w/ Vortex Defender Flip Cap Objective Lens 44, 48-53 mm , MPN: E-10-KIT4 , Code: VX-R2-DFEF-E-10-KIT4
  • Vortex Defender Flip Cap, Eyepiece Lens 41.5 - 46 mm w/ Vortex Defender Flip Cap Objective Lens 50, 55-59 mm , MPN: E-10-KIT5 , Code: VX-R2-DFEF-E-10-KIT5
  • Vortex Defender Flip Cap, Eyepiece Lens 41.5 - 46 mm w/ Vortex Defender Flip Cap Objective Lens 56, 62-66 mm , MPN: E-10-KIT6 , Code: VX-R2-DFEF-E-10-KIT6
  • Vortex Defender Flip Cap, Eyepiece Lens 41.5 - 46 mm w/ Vortex Defender Flip Cap, for 28-31mm Lens , MPN: E-10-KIT1 , Code: VX-R2-DFEF-E-10-KIT1
  • Vortex Defender Flip Cap, Eyepiece Lens 41.5 - 46 mm w/ Vortex Defender Flip Cap, for 45-48mm Lens , MPN: E-10-KIT3 , Code: VX-R2-DFEF-E-10-KIT3
  • Vortex Defender Flip Cap, for 45-48mm Lens, Black, 1oz, O-40 , MPN: O-40 , UPC: 875874008441 , Code: VX-R2-DFEF-O-40
  • Vortex Defender Flip Cap, for 28-31mm Lens, Black, .6oz, O-24 , MPN: O-24 , UPC: 875874008434 , Code: VX-R2-DFEF-O-24
  • Vortex Defender Flip Cap, Objective 32, Black, .8oz, O-32 , MPN: O-32 , UPC: 875874008687 , Code: VX-R2-DFEF-O-32
  • Vortex Defender Flip Cap, Eyepiece Lens 41.5 - 46 mm w/ Vortex Defender Flip Cap, Objective 32 , MPN: E-10-KIT2 , Code: VX-R2-DFEF-E-10-KIT2

Vortex Defender Flip-Cap Lens Cover Unavailable & Discontinued Models

List of Unorderable Models

  • USED Vortex Defender Flip Cap Objective Lens 50, 55-59mm, Black, O-50, EDEMO14, Good, Inspect and Rebox , MPN: O-50-EDEMO14 , Code: VX-R2-DFEF-O-50-EDEMO-RE-C
  • USED, Vortex Defender Flip Cap Objective Lens 56, 62-66mm, Black, 1.4oz, O-56 , MPN: O-56-EDEMO , Code: VX-R2-DFEF-O-56-EDEMO-RE-B
  • USED Vortex Defender Flip Cap Objective Lens 50, 55-59mm, Black, O-50, EDEMO12, Used, Condition Good , MPN: O-50-EDEMO12 , Code: VX-R2-DFEF-O-50-EDEMO12
  • USED Vortex Defender Flip Cap, for 28-31mm Lens, Black, O-24, EDEMO7, Used, Condition Like New , MPN: O-24-EDEMO7 , Code: VX-R2-DFEF-O-24-EDEMO7
  • USED, Vortex Defender Flip Cap, Objective 32, Black, .8oz, O-32 , MPN: O-32-EDEMO , Code: VX-R2-DFEF-O-32-EDEMO-OB-A
  • USED, Vortex Defender Flip Cap, Eyepiece Lens 41.5 - 46mm, Black, 1.6oz, E-10 , MPN: E-10-EDEMO , Code: VX-R2-DFEF-E-10-EDEMO-RE-A
  • USED Vortex Defender Flip Cap, for 28-31mm Lens, Black, O-24, EDEMO6, Used, Condition Fair , MPN: O-24-EDEMO6 , Code: VX-R2-DFEF-O-24-EDEMO6
  • USED, Vortex Defender Flip Cap Objective Lens 50, 55-59mm, Black, 1.3oz, O-50 , MPN: O-50-EDEMO , Code: VX-R2-DFEF-O-50-EDEMO-WP-B
  • USED Vortex Defender Flip Cap Objective Lens 50, 55-59mm, Black, O-50, EDEMO13, Condition Like New, Inspect and Rebox , MPN: O-50-EDEMO13 , Code: VX-R2-DFEF-O-50-EDEMO-RE-A
  • USED Vortex Defender Flip Cap Objective Lens 50, 55-59mm, Black, O-50, EDEMO9, Excellent, Inspect and Rebox , MPN: O-50-EDEMO9 , Code: VX-R2-DFEF-O-50-EDEMO-RE-B
  • USED Vortex Defender Flip Cap, Eyepiece Lens 41.5 - 46mm, Black, E-10, EDEMO7, Condition Fair, Other , MPN: E-10-EDEMO7 , Code: VX-R2-DFEF-E-10-EDEMO-OT-D
  • USED Vortex Defender Flip Cap Objective Lens 44, 48-53mm, Black, O-44, EDEMO8, Used, Condition Like New , MPN: O-44-EDEMO8 , Code: VX-R2-DFEF-O-44-EDEMO8
  • USED Vortex Defender Flip Cap Objective Lens 50, 55-59mm, Black, O-50, EDEMO11, Used, Condition Like New , MPN: O-50-EDEMO11 , Code: VX-R2-DFEF-O-50-EDEMO11
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