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From the manufacturer

Butler Creek Multiflex Flip-Open Scope Cover Eyepiece


Enhanced Protection The incredible lens protection of our standard Flip-Open™ covers, but with additional flex in the collars to fit a wider range of scopes.	Easy Open Covers Open your scope covers easily with just a flick of the thumb.	Waterproof, Airtight Design Multiflex features waterproof, airtight protection, keeping your optic safe from the elements.

Find Your Fit

Measure your scope and find the right fit. Using calipers or a ruler, find your size and refer to the scope cover measurement guide to find your fit.

Measure Your Scope

To properly find your correct size, measure your scope at its widest point on both sides using a ruler, if you do not have calipers. The refer to the Scope Cover Measurement Guide to find the correct model for your scope.


	Butler Creek Multi-Flex Scope Cover	Butler Creek Flip Open Scope Cover	Butler Creek Blizzard Scope Cover
	See Details	See Details	See Details
Customer Reviews	854	16	—
Flip Open	✓	✓	✓
Air Tight O Ring Protection	✓	✓	✓
See Through			✓
Silent-Spring Hinges	✓	✓	✓
Flex Fit	✓

WARNING: California’s Proposition 65

Product Description

Butler Creek's Flip-open scope covers are custom fit to your specific scope for maximum protection. Quiet opening lids flip open at the touch of your thumb and are virtually silent. The button that opens the scope cover is ergonomically designed so that even the slightest pressure applied will open the flap, allowing you to keep your eye on the target without fumbling to open the scope cover. Water-tight friction mounts anchor the covers to your scope while an airtight semi-O-ring keeps out dust and moisture that can damage and cloud your scope.

From the Manufacturer

Simply the ultimate scope lens protection for hunters and shooters with additional flex in the collars to fit a wider range of scopes. They're create a watertight, airtight seal, and open with a touch of your thumb, so you can put your shot through the narrow window of opportunity in the most extreme conditions.

Product information

Technical Details

Item Package Dimensions L x W x H

‎4.8 x 2.68 x 1.26 inches

Package Weight

‎0.04 Kilograms

Item Dimensions LxWxH

‎1.5 x 2.87 x 5.75 inches

Item Weight

‎1.44 ounces

Brand Name

‎Butler Creek

Country of Origin

‎Philippines

Model Name

‎21920

Color

‎Multi

Material

‎Blend

Suggested Users

‎unisex-adult

Manufacturer

‎Vista Outdoor Sales LLC

Part Number

‎21920

Style

‎Compact

Included Components

‎Multiflex 19-20 Eyepiece, Clam

Size

‎Size 19-20 (1.730-1.775-Inch, 43.9-45.1mm)

Sport Type

‎Hunting

Additional Information

ASIN

B00162JHJG

Customer Reviews

854

4.6 out of 5 stars

Best Sellers Rank

#107,732 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
#81 in Sporting Optics Covers

Date First Available

June 8, 2005

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Customer reviews

4.6 out of 5

854 global ratings

How customer reviews and ratings work

Customers say

Customers like the value, fit, quality and ease of use of the scope cover. For example, they mention it's well made, does its job well and is easy to install and use. That said, opinions are mixed on the opening.

AI-generated from the text of customer reviews

66 customers mention66 positive0 negative

Customers are satisfied with the quality of the scope cap cover. For example, they mention it works awesome, has great workmanship, and does its job very well. Some appreciate the scope cover's excellent construction.

"This works well, fits well. However the flex objective side with no yellow button will never stay closed...." Read more

"Fits primary arms 4-14x44 perfectly, snug, flawless. Excellent construction and keeps my objective dust free...." Read more

"It’s a great product and works as expected...." Read more

"Works as advertised. Seems durable. Nice solution for my need. I like the functionality...." Read more

54 customers mention48 positive6 negative

Customers like the fit of the Butler Creek caps. They mention that the rubber can stretch a little bit, and the size chart included is accurate.

"This works well, fits well. However the flex objective side with no yellow button will never stay closed...." Read more

"...The size chart included is accurate, I should have never doubted it and got the recommended size the first time." Read more

"...than the other one. It still fits fine - an goes on easier. The optics and clicks are identical on these scopes...." Read more

"...The size 13-15 fits well on the Multiflex objective side. I went with a Multiplex flip-open size 19-20 for the eyepiece side...." Read more

19 customers mention16 positive3 negative

Customers like the value of the sporting goods. They mention it's well made, great value for the money, and an easy purchase.

"...Nice solution for my need. I like the functionality. They are far less expensive than many products that do the same thing, or less...." Read more

"Fit and work great on my scope, great value for the money." Read more

"Make sure you measure your scope and these fit perfectly. Best value out there." Read more

"Great quality and value for the price." Read more

10 customers mention10 positive0 negative

Customers find the product very easy to use, install, and maintain. They also say it's convenient and fits the purpose nicely.

"...than the other one. It still fits fine - an goes on easier. The optics and clicks are identical on these scopes...." Read more

"...This cover opens quietly and smoothly, easy to operate, and protects your scope while moving to stand etc. Would definitely recommend." Read more

"This is my 3rd set of covers. They are easy to use and waterproof. They keep lens clear and clean while walking to and from stand...." Read more

"Nice cover for your scope vs the traditional bikini covers. Easy to install and use. Just make sure you get the correct size for your scope...." Read more

5 customers mention5 positive0 negative

Customers are satisfied with the protection provided by the product. They mention that it is effective at protecting the lens, and easy to operate. Customers also say that it keeps the glass from getting scratched up.

"...They wont keep the water out but they will keep your glass from getting scratched up!..." Read more

"...opens quietly and smoothly, easy to operate, and protects your scope while moving to stand etc. Would definitely recommend." Read more

"...Although it's a great product and is affective at protecting your lens, it breaks quite easily at the hinge...." Read more

"This is a really good product, protects your scope." Read more

3 customers mention3 positive0 negative

Customers like the noise of the product. They mention that it is quiet when in operation and that it opens quietly and smoothly.

"...This cover opens quietly and smoothly, easy to operate, and protects your scope while moving to stand etc. Would definitely recommend." Read more

"Caps fit snuggly onto the scope, and are silent in operation...." Read more

"Quiet. But still gets in the way..." Read more

12 customers mention7 positive5 negative

Customers are mixed about the opening of the optic cover. Some mention that it works great and it can be easily opened with one finger operation. They love the way they can quickly and quietly snap the cover open in a second. However, others say that it doesn't snap closed to well, sometimes will open on its own for no reason, and the front lens cover does not stay closed.

"...These covers seem to be built well and open EXTREMELY quick!..." Read more

"...version of the objective side, no latch, no lip, there is nothing to hold it closed and it pops open all the time...." Read more

"...I love the way I can quickly and quietly snap the optic cover open in a second. No more worrying about where I put the bikini cover...." Read more

"Little use and cap does not stay closed. Buy once, buy right, don't buy these. Aggravating and cheap...." Read more

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MDH

The flex eyepiece side with the yellow button work good

Reviewed in the United States on July 2, 2023

Verified Purchase

This works well, fits well. However the flex objective side with no yellow button will never stay closed. Just know not to buy the flex version of the objective side, no latch, no lip, there is nothing to hold it closed and it pops open all the time. I returned it and bought a Vortex one, I did keep this eyepiece side though it is nice.

One person found this helpful

Helpful

Amazing Customer

Read no further, GET IT!

Reviewed in the United States on May 22, 2021

Verified Purchase

Fits primary arms 4-14x44 perfectly, snug, flawless. Excellent construction and keeps my objective dust free.

Other reviews that said to get the smaller size (16-18) for this scope and I wasted time/money. The size chart included is accurate, I should have never doubted it and got the recommended size the first time.

One person found this helpful

Helpful

Ron N.

Fits Nikon 3X9 EFR scopes

Reviewed in the United States on April 28, 2020

Verified Purchase

This will fit the ocular lens on the EFR scopes. I say "scope" because there has been a change somewhere along the line. One has metal turret covers and the other plastic. The ocular on the plastic capped scope is slightly smaller in dia. than the other one. It still fits fine - an goes on easier. The optics and clicks are identical on these scopes. I have three right now.

Butler Creek 21920 Multiflex Flip-Open Scope Cover Eyepiece, 19-20

Use this for the objective lens: #30 1.960"

One person found this helpful

Helpful

Jose S.

It’s a great product and works as expected

Reviewed in the United States on October 29, 2017

Verified Purchase

It’s a great product and works as expected. My only con about this product is that when you close the cap it tends to ouch the whole thing ineards which kind of sucks but it’s not a major thing.

Reviewed in the United States on May 22, 2020

Verified Purchase

Works as advertised. Seems durable. Nice solution for my need. I like the functionality. They are far less expensive than many products that do the same thing, or less. I would purchase again.

Helpful

Charlie

Great fit for my Bushnell 2x7 32mm AR scope. Objective side is size 13-15, the eyepiece side is size 19-20 for the Multiplex.

Reviewed in the United States on April 27, 2017

Verified Purchase

Works great. Fits the objective side of the scope on my Bushnell 2x7 32mm AR scope for my Ruger 10/22. The size 13-15 fits well on the Multiflex objective side. I went with a Multiplex flip-open size 19-20 for the eyepiece side. Keep in mind that the Objective side does not have a yellow lever to open. That is the eyepiece side. Make sure you order the right side and size. The objective side just flips up without a yellow lever.

2 people found this helpful

Helpful

Pat

Quick Protection!

Reviewed in the United States on October 2, 2018

Verified Purchase

This is an honest review of this item, which I purchased full price on Amazon.com:

I was looking for an affordable and quick opening replacement cover for my hunting rifle. I have always heard that the Butler Creek covers are the only way to go, now I'm a believer!

I will never again settle for the covers that come with some optics, they are obviously worthless. These covers seem to be built well and open EXTREMELY quick! They wont keep the water out but they will keep your glass from getting scratched up!

Make sure you get the right size, its extremely important! If any issues come up with mine over the hunting season and in the future I will update this review.

If you want the best optic cover in the biz...buy Butler Creek!

5 people found this helpful

Helpful

Jason

Excellent

Reviewed in the United States on February 2, 2016

Verified Purchase

Maybe I had a rare positive experience but, honestly all of my Butler Creek caps have fit perfectly. Granted, I do measure the scope personally before I order. Have purchased four caps now, both the standards for a prism optic and these multiflex for an old BSA Radiant scope that came with a bolt action I bought and that I could not find any information about. Both pairs of Butler Creeks have fit flawlessly, no falling off or caps staying open. Everything works as advertised with my units. Very nice.

2 people found this helpful

Helpful

Top reviews from other countries

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Burona

Butler Creek Covers are the Best

Reviewed in Canada on October 24, 2023

Verified Purchase

I’ve used them for years and the newer flex covers offer a greater range of fit. Great product with super fast shipping.

Ken Lawless

Great value for the price.

Reviewed in Canada on July 10, 2021

Verified Purchase

The quality and price are hard to beat. Ensure that you measure the OD of the objective lens very carefully before selecting the specific model. Use a micrometer if you have one.

Mark Doratti

Great Products

Reviewed in Canada on February 10, 2022

Verified Purchase

I ordered these for 1 different scopes that I own. They fit and work well which will make the 2022 season more enjoyable.
The cost of them, as it turns out, was quite high. They were available in a local store for under $15 each, not the $25 I paid through Amazon.

2 people found this helpful

Andrew Knappett

good product /sizing tricky

Reviewed in Canada on November 23, 2019

Verified Purchase

The scope caps are great, getting sizing right can be trick . Have had to return some caps that didn't fit right contrary to sizing charts and measurements.

One person found this helpful

Robert

Étanche

Reviewed in Canada on September 30, 2020

Verified Purchase

Utilisé cet automne lors de ma chasse à l'orignal. Pluie, neige... très étanche et après vérification si j'avais eu à tirer, vision claire et sans buée.
À utiliser avec le modèle pour le côté objectif.
Bien mesurer votre diamètre et bon produit

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Butler Creek 21920 Multiflex Flip-Open Scope Cover Eyepiece, 19-20

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Butler Creek Multiflex Flip-Open Scope Cover Eyepiece

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Find Your Fit

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Technical Details

Additional Information

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Butler Creek 21920 Multiflex Flip-Open Scope Cover Eyepiece, 19-20

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From the brand

From the manufacturer

Butler Creek Multiflex Flip-Open Scope Cover Eyepiece

Enhanced Protection

Easy Open Covers

Waterproof, Airtight Design

Find Your Fit

Measure Your Scope

Product Description

Product Description

From the Manufacturer

Product information

Technical Details

Additional Information

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