BAK Revolver X4

Starting at $939.88


America's #1 Selling Hard Rolling Cover

The BAK Revolver X4, is a premium hard rolling cover that includes all the same great features of the Revolver X2, now with a stylish matte black finish. When closed, heavy-duty aluminum slats secure the cover the full length of the bed on both sides, providing unrivaled strength and security. When opened, the cover rolls up tight providing full bed access without blocking rear view mirror and third brake light visibility.


The RX4 is constructed of heavy-duty aluminum panels. When latched, the ¾” Patented Rotational Locking Rails secure the cover the entire length of the truck bed. Heavy-duty locking levers are now 3X thicker with reinforced gussets for added strength and are engineered to lock with no adjustment necessary.

  • Premium matte finish hard rolling cover
  • Patented rotational locking rails lock 100% of the cover for unrivaled security
  • Automatic latching system
  • 5-year warranty


Please make use of the Revolver X4 Hard Rolling Tonneau Covers installation instructions below to assist you with the installation of your Revolver X4 Hard Rolling Tonneau Covers.

Supplemental Sheets

If you need additional install sheets for your specific Make please see below.  

If you have further questions or need technical assistance with the install of any Revolver X2 truck bed cover, please call one of our knowledgable installation experts at 818-365-9000 or Contact Us and we will be happy to assist you.


BAK® Industries (“BAK”) warrants your Revolver X4 hard rolling truck bed cover to be structurally free from defects in material and workmanship for 5 Year Limited Warranty period from the retail date of purchase.

Warranty registration must be on file and/or proof of original purchase (detailed and dated receipt) is required for warranty service. Warranty is nontransferable and applies to the original purchaser of the BAK product only. 

Sleek, Low-Profile Design

Revolver X4 sits flush with your bed rail caps providing a low-profile look that complements your truck.

Easy to Use

No lifting required. The cover can easily be rolled open and closed with one-handed operation from either side of the truck.

100% Full Bed Access & Visibility

The Revolver X4 rolls up tight providing 100% bed access without blocking rear view visibility or the third brake light.


1,589 Total
Samuel C.
2018 Chevrolet Silverado 1500
5 / 5
5 July 2020
Really happy with this product! Easy installation and great look. Really compliments the truck.
Norman S.
2017 Ram 1500
5 / 5
1 July 2020
Some sharp edges around the tailgate side, not nothing a small file can't fix. I'm curious to see how well the seals do at holding water out/how long they last.
Ray S.
2020 Ford F-150
5 / 5
30 June 2020
Super cover
2019 Ford Ranger
5 / 5
28 June 2020
Easy to install. The original shipment did not have the bulkhead needed, however, customer service sent it right out when I contacted them.
jeremy R.
2018 Ford F-150
5 / 5
28 June 2020
we are loving it
James d.
2020 Ram 1500
5 / 5
28 June 2020
Install was easier than expected. Rails installed very easily with soap and water as suggested per instructions.
Timothy I.
2017 Chevrolet Silverado 1500
5 / 5
26 June 2020
As of right now, can’t be happier.
Charles L.
2017 Ram 2500
5 / 5
26 June 2020
My friend has this same MX4 cover on his truck....I helped him install it, and was sold as to the durability and quality in comparison to the price. That's what sold me on purchasing the same cover myself, and I couldn't be happier!
Michael R.
2019 Ford F-150
5 / 5
25 June 2020
Glad to have this
James L.
2020 Chevrolet Silverado 2500 HD
5 / 5
25 June 2020
Loved everything so far, we will see how it holds up.