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UnderCover ArmorFlex Tonneau 2019-2026 Silverado/Sierra 1500 6'7" Bed

UnderCover ArmorFlex Tonneau 2019-2026 Silverado/Sierra 1500 6'7" Bed

Regular price $1,399.99 USD
Regular price Sale price $1,399.99 USD
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SKU:AX12023

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Quantity
  • Calculated shipping — oversized item
  • Ships in 1–2 business days
  • 30-day hassle-free returns
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Key Features

  • Fits with or without the GM MultiPro / MultiFlex multi-function tailgate
  • 400 lb evenly distributed load rating on the closed cover
  • Aluminum panels finished in Multi-Shield / LINE-X textured matte black
  • EPDM rubber seals with integrated drain tubes keep the bed dry
  • Dual-action tailgate seal - drop the gate with the rear panel up or down
  • Folds two-thirds on safety straps or flush to the cab for full bed access
  • Clamp-on install with no drilling on most applications
  • Made in the USA, limited 5-year warranty

UnderCover ArmorFlex AX12023 is a hard tri-folding tonneau cover for the 2019-2026 Chevrolet Silverado 1500 and GMC Sierra 1500 on the new body, fitted with the 6'7" (79.4") standard bed. The compatibility note GM owners actually need: RealTruck lists AX12023 as working with or without the MultiPro / MultiFlex tailgate, so the six-way gate that rules out a lot of covers does not rule out this one.

ArmorFlex is the armored end of the UnderCover folding range. Rigid aluminum panels sit in an aluminum frame under UnderCover's Multi-Shield textured matte-black treatment, a LINE-X specialty automotive coating chosen to shrug off impacts and abrasion. UnderCover rates the closed lid for 400 lb of evenly distributed cargo.

EPDM rubber gaskets feed integrated drain tubes, and the rear seal is dual-action, so the tailgate cycles with the last panel up or down. To get into the bed, drop the tailgate, pull the release cables on either side and fold forward: two-thirds open is held on safety straps, or flip the stack flush to the back glass for the whole box.

Key Benefits

  • Listed to fit whether or not the truck has the MultiPro / MultiFlex multi-function tailgate
  • 400 lb evenly distributed load rating on the closed cover
  • EPDM rubber seals and integrated drain tubes route water out of the bed
  • Dual-action tailgate seal: open the gate with the rear panel up or down
  • Clamp-on install with no drilling on most applications, under an hour
  • Made in the USA with a limited 5-year warranty

What's Included

  • ArmorFlex tri-fold cover assembly
  • Bed rail clamps and mounting hardware
  • Integrated safety straps and prop rods
  • Drain tubes

Specifications

  • Cover type: hard tri-folding
  • Material: aluminum panels in an aluminum frame
  • Finish: matte-black textured Multi-Shield / LINE-X coating
  • Weight capacity: 400 lb evenly distributed
  • Panel count: 3
  • Bed length: 6'7" (79.4 in) standard bed
  • Bed access: two-thirds on the straps, 100% folded to the cab
  • Sealing: EPDM rubber seals, integrated drain tubes, dual-action tailgate seal
  • Install: clamp-on, Level 1, no drilling on most applications, under 1 hour
  • Warranty: limited 5-year, non-transferable
  • MPN: AX12023

Fitment

UnderCover AX12023 fits 2019 through 2026 Chevrolet Silverado 1500 and GMC Sierra 1500 pickups on the new body with the 6'7" (79.4") standard bed, with or without the MultiPro / MultiFlex tailgate.

Does not fit a GMC Sierra with the CarbonPro composite bed. Multiple sellers publish this application as "without CarbonPro truck bed," and the cover's clamps and seals are cut for the steel box.

Does not work with factory bed storage boxes; RealTruck states this directly.

Does not fit the 2019 Silverado 1500 LD or Sierra 1500 Limited, the previous-body trucks GM sold alongside the new one in 2019; this application is published as "2019 (New Body Style)" onward.

  • 2019-2026 Chevrolet Silverado 1500, 6'7" (79.4") bed, with or without MultiPro tailgate
  • 2019-2026 GMC Sierra 1500, 6'7" (79.4") bed, with or without MultiPro tailgate, without CarbonPro bed

FAQ

Does AX12023 work with the MultiPro tailgate?

Yes. RealTruck lists AX12023 as working on models with or without the MultiPro tailgate, and sellers publish the same application as "w/ or w/o MultiPro TG."

Will AX12023 fit a Sierra with the CarbonPro bed?

No. The published application for this part number is expressly without the CarbonPro truck bed.

Does AX12023 fit a 2019 Silverado 1500 LD?

No. This is the new-body application. The 2019 Silverado 1500 LD and Sierra 1500 Limited are the carryover-body trucks and are not covered by this part number.

How much weight can the ArmorFlex hold?

UnderCover rates the ArmorFlex to 400 pounds of evenly distributed cargo on the closed cover.

Vehicle Fitment

Years Make Model Submodel
2019–2026 Chevrolet Silverado 1500 6'7" bed
2019–2026 GMC Sierra 1500 6'7" bed

Specifications

material
Rigid aluminum panels in an aluminum frame
finish
Matte-black textured Multi-Shield / LINE-X coating

Shipping & Returns

Free shipping on orders $250+ (standard items). Oversized items ship at calculated rates.

30-day returns with RMA required. 15% restocking fee, buyer pays return shipping. Defective items returned free with full refund.

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