Undercover Armor Flex - AX12023 (Image)
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Undercover Armor Flex - AX12023 - 2019-2025 GMC Sierra 1500 - 6.5 ft. Bed

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Vehicle Specific
2899   – Reward Points
  • $1449.99

With or Without Multi Pro Tailgate

STYLE: Hard Fold Up Tonneau Cover

  • Line-X Coated Panels
  • Easy clamp on installation
  • Heavy-Duty Panels
  • Folds up behind the cab for total bed access
Select your vehicle

Undercover Armor Flex - Logo


Undercover Armor Flex


The new ArmorFlex hard folding cover is designed to protect your truck bed and its contents, while maintaining its strength, style and durability. Heavy-duty panels are coated with a LINE-X® specialty automotive coating designed to provide advanced protection from dents and scuffs, even in the most extreme environments. The dual-action tailgate seal offers universal tailgate operation, allowing you to close the tailgate with the last panel of the cover up or down. ArmorFlex is proudly made in the USA, and comes backed by a 5-year warranty.


Undercover Armor Flex - Open


  • Heavy-Duty Panels
  • Stylish Matte Black Appearance
  • Premium-Grade Line-X® Coating
  • Low-Profile Design
  • Dual Action Tailgate Seal
  • Automatic Latching Panels
  • Clamp on, No-Drill Installation
  • Made in the USA
  • 5 Year Warranty


Undercover Armor Flex - Matte Black Appearance

Matte Black Appearance


The LINE-X® coating provides a stylish matte black finish appearance to your truck bed cover.



Undercover Armor Flex - Damage Resistant

Damage Resistance


The ArmorFlex truck bed cover features LINE-X® specialty automotive coating for superior protection against scuffs, dents, and dings even in the harshest of environments.



Undercover Armor Flex - Dual Action Tailgate Seal

Dual Action Tailgate Seal


The dual-action tailgate seal offers universal tailgate operation, allowing you to close the tailgate with the last panel of the cover up or down.



Undercover Armor Flex - Heavy-Duty Panel Construction

Heavy-Duty Panel Construction


The heavy-duty panels construction along with the LINE-X® coating provide ultimate strength, durability, and style.

  • Fitment Type
    Vehicle Specific
Year Make Model Bed Length
2019 GMC Sierra 1500 Standard Cab - 6.5 ft. Bed
2019 GMC Sierra 1500 Double Cab - 6.5 ft. Bed
2019 GMC Sierra 1500 Crew Cab - 6.5 ft. Bed
2019 Chevrolet Silverado 1500 Standard Cab - 6.5 ft. Bed
2019 Chevrolet Silverado 1500 Double Cab - 6.5 ft. Bed
2019 Chevrolet Silverado 1500 Crew Cab - 6.5 ft. Bed
2020 GMC Sierra 1500 Standard Cab - 6.5 ft. Bed
2020 GMC Sierra 1500 Double Cab - 6.5 ft. Bed
2020 GMC Sierra 1500 Crew Cab - 6.5 ft. Bed
2020 Chevrolet Silverado 1500 Standard Cab - 6.5 ft. Bed
2020 Chevrolet Silverado 1500 Double Cab - 6.5 ft. Bed
2020 Chevrolet Silverado 1500 Crew Cab - 6.5 ft. Bed
2021 GMC Sierra 1500 Standard Cab - 6.5 ft. Bed
2021 GMC Sierra 1500 Double Cab - 6.5 ft. Bed
2021 GMC Sierra 1500 Crew Cab - 6.5 ft. Bed
2021 Chevrolet Silverado 1500 Standard Cab - 6.5 ft. Bed
2021 Chevrolet Silverado 1500 Double Cab - 6.5 ft. Bed
2021 Chevrolet Silverado 1500 Crew Cab - 6.5 ft. Bed
2022 GMC Sierra 1500 Crew Cab - 6.5 ft. Bed
2022 GMC Sierra 1500 Double Cab - 6.5 ft. Bed
2022 GMC Sierra 1500 Standard Cab - 6.5 ft. Bed
2022 GMC Sierra 1500 Limited / Old Body Style Crew Cab - 6.5 ft. Bed
2022 GMC Sierra 1500 Limited / Old Body Style Double Cab - 6.5 ft. Bed
2022 GMC Sierra 1500 Limited / Old Body Style Standard Cab - 6.5 ft. Bed
2022 Chevrolet Silverado 1500 LD / Old Body Style Crew Cab - 6.5 ft. Bed
2022 Chevrolet Silverado 1500 LD / Old Body Style Double Cab - 6.5 ft. Bed
2022 Chevrolet Silverado 1500 LD / Old Body Style Standard Cab - 6.5 ft. Bed
2022 Chevrolet Silverado 1500 Standard Cab - 6.5 ft. Bed
2022 Chevrolet Silverado 1500 Double Cab - 6.5 ft. Bed
2022 Chevrolet Silverado 1500 Crew Cab - 6.5 ft. Bed
2023 Chevrolet Silverado 1500 Standard Cab - 6.5 ft. Bed
2023 Chevrolet Silverado 1500 Double Cab - 6.5 ft. Bed
2023 Chevrolet Silverado 1500 Crew Cab - 6.5 ft. Bed
2023 GMC Sierra 1500 Standard Cab - 6.5 ft. Bed
2023 GMC Sierra 1500 Double Cab - 6.5 ft. Bed
2023 GMC Sierra 1500 Crew Cab - 6.5 ft. Bed
2024 Chevrolet Silverado 1500 Standard Cab - 6.5 ft. Bed
2024 Chevrolet Silverado 1500 Double Cab - 6.5 ft. Bed
2024 Chevrolet Silverado 1500 Crew Cab - 6.5 ft. Bed
2024 GMC Sierra 1500 Standard Cab - 6.5 ft. Bed
2024 GMC Sierra 1500 Double Cab - 6.5 ft. Bed
2024 GMC Sierra 1500 Crew Cab - 6.5 ft. Bed
2025 GMC Sierra 1500 Crew Cab - 6.5 ft. Bed
2025 GMC Sierra 1500 Double Cab - 6.5 ft. Bed
2025 GMC Sierra 1500 Standard Cab - 6.5 ft. Bed
2025 Chevrolet Silverado 1500 Crew Cab - 6.5 ft. Bed
2025 Chevrolet Silverado 1500 Double Cab - 6.5 ft. Bed
2025 Chevrolet Silverado 1500 Standard Cab - 6.5 ft. Bed
exclaimptSmall.gifProp 65 WARNING


Prop 65 WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.  For more information go to www.P65Warnings.ca.gov. 

    • SKU
      AX12023
    • UPC/ISBN
      192631024231
  • Style
    Hard Fold Up
  • Keystone Inventory Tracking
    Yes
  • Keystone Brand ID
    U19
  • Brand
    Undercover
  • Model
    Undercover - Armor Flex
  • Warranty
    5 Years
  • Installation Type
    Clamp On
  • Locking
    Lockable Using Tailgate handle
  • Drilling Required
    Yes (Drain tubes only)
  • Cover Side Fasten Style
    Not Applicable
  • Works With Tool Box
    No
  • Works with Bed Rails
    No
  • Hinged
    Yes
  • Bed Length
    6.5 Ft. (79.4 In.)
  • Product Type
    Tonneau Covers
  • Special Note 1:
    For Trucks WITH Multi-Pro Tailgate
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