Undercover Tonneau Covers ArmorFlex Truck Bed Cover (Textured Black) - AX12021 Fits select: 2019-2021 CHEVROLET SILVERADO, 2019-2021 GMC SIERRA
Undercover Tonneau Covers ArmorFlex Truck Bed Cover (Textured Black) - AX12021 Fits select: 2019-2021 CHEVROLET SILVERADO, 2019-2021 GMC SIERRA
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Undercover Tonneau Covers ArmorFlex Truck Bed Cover (Textured Black) - AX12021 Fits select: 2019-2021 CHEVROLET SILVERADO, 2019-2021 GMC SIERRA

4.2 stars out of 222 reviews
(4.2)|
222 ratings
Undercover Tonneau Covers ArmorFlex Truck Bed Cover (Textured Black) - AX12021 Fits select: 2019-2021 CHEVROLET SILVERADO, 2019-2021 GMC SIERRAUndercover Tonneau Covers ArmorFlex Truck Bed Cover Textured Black AX12021 Fits select 2019 2021 CHEVROLET SILVERADO 2019 2021 GMC SIERRARealTruck UnderCover Armor Flex Hard Folding Tonneau Cover Fits 2019 2025 Chevy GMC Silverado Sierra 1500 5 10 Bed 69 9
Actual Color:Multicolor-Out of stock
Black, $1,249.99
selected, Multicolor, $1,109.45, Out of stock
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Key item features

UnderCover AX12021 Armor Flex Tonneau Cover; Black Textured;
Current price is $1,109.45
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Customer ratings & reviews

4.2 out of 5 stars
stars222 ratings222 reviews
How item rating is calculated
  1. 5 stars64% (141)
  2. 4 stars14% (30)
  3. 3 stars11% (25)
  4. 2 stars6% (13)
  5. 1 star6% (13)

Reviews summary

Pros
  • : Has a streamlined design that complements the truck's style.
  • : Performs tasks as intended without issues.
  • : Takes minimal time and effort.
  • : Fits securely on truck bed rails.
Cons
  • : Product's value does not justify the cost for some users.
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Showing 1-3 of 222 reviews

Jun 7, 2025
Don G.
5 out of 5 stars review

Seller Verified Purchase

Sleek and sturdy

The hard folding tonneau cover was very sturdy and slick looking on the truck. Keeps everything dry. Compliments the white and the spray in bed liner.

Review from realtruck.com
Helpful?72TNSUFD57MX151692473
Apr 29, 2025
Garry E.
5 out of 5 stars review

Seller Verified Purchase

Game changer

Once I got the side rails on and set the front it was literally already in perfect adjustment!! I never had to do a thing to it other than put it to good use.

Review from realtruck.com
Helpful?72TNSUFD57MX151692473
Sep 12, 2025
SCOTT C.
5 out of 5 stars review

Seller Verified Purchase

The best tonneau cover on the market!

The fit, ease of installation, and the looks of this tonneau cover is amazing! You can still use the whole bed of the truck if needed or keep your gear covered and secure.

Review from realtruck.com
Helpful?72TNSUFD57MX151692473