Vortex Optics Defender Flip Cap - Eyepiece (41.5 - 46 mm)

Manufactured by Vortex Optics
SKU: E-10
MPN: E-10
Manufactured by Vortex Optics
2 Reviews

In Stock

Orders of non-FFL items will ship same-day if placed before 3:30pm CST (M-F). FFL orders will ship within 5 business days if transfer details are provided.

For individual Officer, First Responder, and Military pricing please make sure you are logged in. for details



The Defender Flip Cap 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 all over the world 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 E-10 fits all Vortex Riflescopes except the 1-inch tube Viper models VPR-M-01BDC, VPR-M-04BDC, and VPR-M-03BDC.

  • Outside diameter: 41.5 - 46 mm | 1.6 - 1.8 inches
  • Vortex DOPE disk compatible 
See More


BrandVortex Optics
FitmentScope Eye Piece
Ocular Diameter41.50 mm - 46.00 mm
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Ratings & Reviews

2 reviews

  • 4 stars
  • 0 reviews
  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews

Works well.

by -

More stout than others I've come across.

Name speaks for itself

by -

You will not go wrong with these covers!!! I have these on my Vortex Diamondback 6-24x50 also have the corresponding cap for the objective. Well worth it!!!