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Vortex Defender Flip Cap Objective 40

Name: Vortex Defender Flip Cap Objective 40
Brand: Vortex
SKU: VODFCO40
Price: 29.99 USD
Availability: InStock
Rating: 4.1 (13 reviews)

BH #VODFCO40 • MFR #O-40

13 reviews

Authorized Dealer

Key Features

For 45.5-48.5mm Objective Lenses
Spring-Loaded Hinge
Durable Construction

Keep the optics of your riflescope safe with the robust Defender Flip Cap Objective 40 from Vortex. Designed for lenses with an outside diameter of 45.5-48.5mm, this cap will fit a wide variety of scopes. Also, it has a spring-loaded hinge to flip up and out of the way.

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$29.99

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Vortex O-40 Overview

Compatible Riflescopes

Razor HD LH: RZR-1589, RZR-1572, RZR-1565, RZR-1558
Viper: VPR-M-O4BDC, VPR-M-O1BDC
Diamondback HP: DBK-04-BDC, DBK-M-04P
Crossfire II: CF2-31005, CF2-31007, CF2-31025

UPC: 875874008441

Vortex O-40 Specs

Outside Diameter

1.8-1.9 / 45.5-48.5 mm

Packaging Info

Package Weight	0.125 lb
Box Dimensions (LxWxH)	6.95 x 5.3 x 1.55"

Vortex O-40 Reviews

Great product great price excellent

By TERRY M.

Rated 5 out of 5

Date: 2024-04-26

Great product great price excellent quality glad I made this purchase saved my scope from damage.

Fits the Vortex Solo R/T 8x36mm Monocular

By Robert

Rated 4 out of 5

Date: 2021-06-04

Fits the Vortex Solo R/T 8x36mm Monocular for added protection from dust and rain.

See any errors on this page?

which diameter fits Vortex Diamondback 4-12x40?

Asked by: Ting Wei

Yes, the Vortex Defender Flip Cap Objective 40 is compatible with the Vortex 4-12x40 Diamondback Riflescope.

Answered by: Dan W

Date published: 2025-09-29

Will the Vortex flip cap 40 fit the back of Canon ...

Will the Vortex flip cap 40 fit the back of Canon 15x50is binoculars?

Asked by: gary

No, it will be too small. Try the VOFC6 as a more appropriate size.

Answered by: John

Date published: 2019-05-06

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