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Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sights

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Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B
Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Flat Dark Earth, RDF20-T
Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sights, Black, Flat Dark Earth
Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B
Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B
Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B
Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B
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Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dots
Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B
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Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B
Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Flat Dark Earth, RDF20-T
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Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Flat Dark Earth, RDF20-T
Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sights, Black, Flat Dark Earth
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Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sights, Black, Flat Dark Earth
Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B
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Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B
Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B
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Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B
Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B
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Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B
Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B
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Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B

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Questions & Answers
Customer Reviews
Helpful Negative Review Not universal by Smitttydog, Verified Owner, August 22, 2022
These are not universal. I bought these for my Sig Romero 5. And because the battery nipple is right below the front lens you can get a cap on. Impossible. Fit no problem on my Vortex red dot and it’s a nice flip function but not happy they don’t fit...
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1/1 found this helpful
Most Recent Reviews Decent but not perfect by Frank, Verified Owner, July 20, 2023
These fit the Sig Romeo 5 with the cr2032 coin battery. There’s not much lip to grab onto on a Romeo 5, so they do ok for what they are. I got one set that was softer plastic and one set that was harder plastic. Not sure why. The harder plastic set...
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1/1 found this helpful
Most Recent Reviews hard to install by eric, Verified Owner, January 24, 2024
It works but its hard to install. The internal diameter is small, i had to put it in boiling water first so its expand. If you didnt do this, you probably wont be able to install it. One good thing would be that its real tight once you get it on. No ...
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1/1 found this helpful
Most Recent Reviews Great product! by REN, Verified Owner, March 22, 2025
It’s an excellent upgrade if you’re expecting dust or rain. Had to warm them up a little to fit on a Holosun, but a tight fit is good.
Read All 4 Reviews
Color: Black Fabric/Material: Polypropylene

Code: MON-IA-PSWA3-RDF20-B

MPN: RDF20-B

UPC: 810088810138

Product No Longer Available

Product Info for Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sights

When you are lining up a shot, clean pristine optics are an absolute necessity! Protect your expensive red dot sight from the elements with the Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sights!image

Each package includes one pair of flip up lens caps Lens caps are compatible with all major makes and models of 1x20 red dot sights. Please view compatibility chart for further confirmation.

Package Contents:

  • Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sights
  • 2 Flip-Up Lens Caps

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Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sights Unavailable & Discontinued Models

List of Unorderable Models

Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Black, RDF20-B , MPN: RDF20-B , UPC: 810088810138 , Code: MON-IA-PSWA3-RDF20-B
Monstrum Flip-Up Lens Cap Set for 1x20mm Red Dot Sight, Flat Dark Earth, RDF20-T , MPN: RDF20-T , UPC: 810088810145 , Code: MON-IA-PSWA3-RDF20-T
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