



See Options
Need help? Ask our experts.
The Alumina Flip-Back lens cover is made from durable 6061-T6 aircraft-grade aluminum.
The neodymium magnets in the Alumina Flip-Back lens cover ensure a secure closure, protecting your lens from dust, dirt, and harsh weather conditions.
Yes, the round objective and ocular models of the Alumina Flip-Back lens cover can be rotated to open in any direction.
The Alumina Flip-Back lens cover is specifically designed for Leupold scopes built after 2003.
No, the Alumina Flip-Back lens cover is precision-engineered for a low-profile position when open, ensuring it doesn't interfere with your shooting experience.
Review Summary
2025-12-08T19:00:00
Best caps on the market!
Tyler B.

2025-12-07T19:00:00
It would be better if it had an opening / release button. The magnet is weak and it doesn't stay closed. It would also be better if it could open enough that it would stay flush against the scope instead of just being a "bunny" ear staying open to outline the scope.
Charles H.

2025-11-29T19:00:00
I quite like the 3 that I already have. However, I'm waiting unnecessarily long to get the 4th one for my 4th 52mm scope I bought! Always "Out of stock". Why? When are they scheduled to to be available? I'd like an answer please. It's been months now.
Mike H.

2025-11-24T19:00:00
4 star review is because the caps cannot flip down depending on the setting of magnification you have the scope set to. Front cover works great. But rear cover has me wondering if it would be better to not use flip up caps in the field.
Jarrett R.

2025-11-23T19:00:00
Just what the doctor ordered!! Leupold this is no other.
Terry P.

2025-11-11T19:00:00
Great
Karl S.

2025-11-09T19:00:00
Works great. Stays on and keeps lenses clean
Kenneth S.

2025-11-08T19:00:00
The #1 Reason to buy Leupold. These covers beat every other high end manufacturer of scopes.
Richard L.

2025-10-11T20:00:00
Great caps, but should be standard on any high-end scope. I bought two MK5 and you sent cheep plastic scope covers. Shameful.
Douglas C.

2025-10-11T20:00:00
Love the caps
Agustus F.

2025-10-03T20:00:00
Works and fits Great helps keep the direct sunlight away from the lens and debris off the lens surface
MIKE B.

2025-10-02T20:00:00
fits well and stays closed while hiking
Steve W.

2025-09-30T20:00:00
????
MERRELL M.

2025-09-30T20:00:00
I am very happy with it.
DEVIN A.

2025-09-29T20:00:00
They fit perfect and are tough. I think they will go in and out of a scabbard without damage.
Jeff F.

2025-09-27T20:00:00
Very high quality and there is no better scope caps on the market than these.
Aric J.

2025-09-06T20:00:00
Solid, well made
Matthew W.

2025-08-27T20:00:00
New knobs are a welcome change. No longer have to use a wrench to adjust cross hairs. Lens shade worked well in high desert sunny, late afternoon, conditions.
Martin H.

2025-08-20T20:00:00
Perfect fit on the scope and Leupold flip up scope covers screw in nicely. Got tired of sun glare causing loss of clarity. Perfect solution. Well made, exceptional quality.
Matthew W.

2025-08-11T20:00:00
Does what it needs to and keeps crap out. I also like that you can stow the flip up part all the way back so its parallel with the scope.
Corey L.

2025-07-31T20:00:00
Quality
Thomas M.

2025-06-25T20:00:00
Excellent cover for my scope. I like that it is treaded so there is no chance of it slipping off and getting lost. It's a little expensive but the quality of design and materials make it a good buy.
Alan N.

2025-05-12T20:00:00
Hands down the best scope lens covers ever made.
Roy R.

2025-04-13T20:00:00
Really nice lens shade! Very well made. Works well to eliminate sun glare on the lens.
Scott C.

2025-04-02T20:00:00
Excellent. I wish I had these for all my other scopes over the years.
David B.

2025-03-09T20:00:00
Does not stay tight and in place.
Jerry B.

2025-03-08T19:00:00
Some of the most thought out lens caps. Silent open, nice rubber pressure seal but still easy to open. Won't rattle loose.
Charlie k.

2025-03-03T19:00:00
Great quality lens cover for your scope
Corey H.

2025-03-01T19:00:00
Great product, fits great, really protects the scope
Scott D.

2025-02-22T19:00:00
Customer service was great, high quality, good price and great warranty
Fred Z.

Accidents happen where life happens. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failure, and more.
If we can’t fix it, we’ll replace it at no additional cost.
Protect your product from drops, spills, and more.
Enjoy your gear without fear. We have you covered!
When regular use of your product over time results in mechanical or electrical failure.
We will never charge you a deductible after the purchase of a plan.
Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for purchase Internationally or in U.S. Territories.
Browse our FAQ
40mm Objective Riflescopes
6061-T6 aluminum
030317590451
Great lens covers
By Rocky
These work as they should, a lot better than the rubber or plastic ones.
Smooth & Durable
By Buck B.
I was wondering how a single lens cover could be so expensive until I decided to see. Although very expensive, this is the smoothest lens cap on the market. It threads in so nice and with a flick the cap glides open.
After 2003, Leupold introduced a new standard in riflescope protection with the Alumina Flip-Back lens covers. Specifically designed for Leupold scopes, these lens covers are equipped with powerful neodymium magnets for a secure closure, ensuring your lens stays protected from dust, dirt, and harsh weather conditions.
Triple O-ring seals further enhance the protection, offering maximum resistance against the elements. Crafted from durable 6061-T6 aircraft-grade aluminum, the Alumina Flip-Back lens covers are not only robust but also lightweight, adding minimal weight to your equipment.
Precision-engineered for quick and easy operation, these lens covers offer a low-profile position when open, ensuring they don't interfere with your shooting experience. The round objective and ocular models are designed with versatility in mind, allowing for rotation to open in any direction.
With their stylish matte black finish, these Alumina Flip-Back lens covers not only safeguard your riflescope but also enhance its aesthetic appeal. Trust in the quality and reliability of Leupold's Alumina Flip-Back lens covers to keep your 40mm objective riflescope in pristine condition.