We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black flip-up lens cover for 28-31mm optics

Vortex Optics

Vortex Optics Defender Flip Cap 28-31mm Black O-24

SKU CH-RJA5-AEVSP

Protects 28-31mm front lenses with a flip-up cap design

  • Protects front lens from dust and impact
  • Fits objective diameters from 28 mm to 31 mm
  • Flip-up design keeps cover attached during use
  • Black finish matches scope aesthetics

Flip cap for 28-31mm objective lenses

The Vortex Optics Defender Flip Cap fits objective lenses measuring 28 to 31 millimetres. It protects the front glass of a riflescope from dust, moisture and impact while the optic is carried or stored. The spring-loaded cover flips open with one finger for rapid target acquisition. Shooters who need a secure, low-profile shield for compatible scopes will find it suited to field use.

O-24 model with tethered hinge

The cap attaches via a flexible tether that stays connected to the scope body so the cover cannot be lost in rough terrain. Its matte black finish reduces glare and matches standard optic housings. The design adds minimal bulk and does not interfere with lens coatings or turret adjustments. Users requiring a different diameter range or a screw-on style will need an alternative solution.

Highlights

  • Protects front lens from dust and impact
  • Fits objective diameters from 28 mm to 31 mm
  • Flip-up design keeps cover attached during use
  • Black finish matches scope aesthetics

Specifications

BrandVortex

Questions about this item

Will the hinge on the Vortex Defender Flip Cap O-24 wear out and need replacement?

The flip-cap hinge is a moulded polymer pivot; with normal field use it lasts the life of the optic and is not a user-serviceable part.

What stops the cap from sealing properly during prolonged rain or dust exposure?

The friction-fit design grips 28-31 mm objective bells; heavy recoil or extreme temperature cycling can loosen the grip before the seal itself fails.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.