BAK Revolver X4s

Starting at $958.88



America’s #1 selling hard rolling cover, the Revolver X4s, has new features, including matte black aluminum underbody, integrated safety slat caps, rear corner caps, and more. Other Revolver X4s features include industrial-grade vinyl and matte finished seals and side rail extrusions.  

EXPECT MORE with Revolver X4s: 

  • NEW Matte black aluminum under body and clamps for a sleek, stylish appearance 
  • NEW Side rail seals with smooth flat design 
  • NEW Durable strap and buckles to secure the open cover while driving 
  • NEW Rear corner caps for a more modern appearance 
  • NEW Integrated bulkhead seal for superior sealing 
  • NEW Integrated safety slat caps for protection when rolling 
  • Matte finished, industrial-grade vinyl that keeps water out 
  • Full access to stake pocket holes for additional accessories 
  • Patented rotational locking rails that secure the full length of the bed 
  • Automatic latch secures easily and releases from either side of the bed 
  • 5-year warranty 


The Revolver X4s is a bed cover engineered for real-world durability with a modern, stylish appearance. It has top-to-bottom, matte-black finishes to every aspect of the truck bed cover paired with one-of-a-kind details that set it above the rest. It a premium option that offers dependable bed protection when cover is closed, and complete bed access when opened. The Revolver X4s has a flush appearance and is backed by a 5-year warranty.  


Please make use of the Revolver X4s Hard Rolling Tonneau Covers installation instructions below to assist you with the installation of your Revolver X4s 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 X4s 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 X4s 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. 

To see how to care for your Revolver X4s visit our Care & Maintenance page for more information. 

Interactive Image

Sleek, Low-Profile Design

Revolver X4s sits flush with your bed rail providing a low profile look that complements your truck

All Matte Black

Top-to-bottom, matte-black finishes make this cover a stylish option. Its black aluminum underbody sets this cover apart from the rest

Safety Caps

Integrated safety slat caps for protection when rolling


90 Total
Ross P.
5 / 5
17 November 2021
Amazing cover with excellent security and space to keep things dry.
Christopher A.
5 / 5
4 November 2021
First cover lasted 6 years and was still in great condition when I traded in my truck. This is my second purchase and I highly recommended this brand!
Daniel M.
5 / 5
9 October 2021
Happy Customer
Great product. Works as advertised, looks sharp. Only complaint is that it’s not 100% waterproof, but definitely keeps most water out. Do see some leakage in the corners. Still giving it an excellent rating.
Christopher B.
5 / 5
1 October 2021
Best fit and finish with simple functionality. Ease of installation.
Craig H.
2015 GMC Canyon
5 / 5
3 August 2021
I can't tell you how good it feels to see other trucks, pulling up next to me, spending time looking at my cover.
Mario R.
2019 Ram 1500 Classic
5 / 5
14 July 2021
The first cover that came in was not in good shape but I contacted Bak industries and they made it right. Great customer service.
Brian K.
2021 GMC Sierra 1500
5 / 5
12 July 2021
Got a bak roll-x for 2014 Silverado when I bought it new in 2014, had it until I just traded for my 2021, the cover still looked great and worked flawlessly, this revolver x4s seems like a great evolution of the product thus far
John F.
2015 Nissan Frontier
5 / 5
9 July 2021
nice product
Kent E.
2006 Ford F-350 Super Duty
5 / 5
6 July 2021
Appreciate the prompt service and help you provide.
Bret K.
2021 Chevrolet Silverado 3500 HD
5 / 5
3 July 2021
Very happy with the design and function of this cover. Like the fact it seals up from water, dust, and that it locks. So easy install. Took me longer to open & remove contents of the box than it took to install, about 20 min tops.
Terry G.
2021 Ford F-150
5 / 5
29 June 2021
I have had a similar cover before. This one appears to be made of better quality material.
John Q.
2021 Nissan Frontier
5 / 5
27 June 2021
Looks great!
Jack S.
2020 Chevrolet Silverado 2500 HD
5 / 5
24 June 2021
Great Quality! Fast shipping. Easy to install. Very pleased with it.
Robert W.
2020 Ford F-250 Super Duty
5 / 5
21 June 2021
A significant improvement in design over the X4. No more inside cloth sagging from the glue heating up. The rear corners are beefed up. The all-black style inside and out looks great.
Thomas S.
2017 Ram 1500
5 / 5
20 June 2021
Great tonneau cover! Easy to install and looks/functions great!