Revolver X4s%

BAK Revolver X4s Truck Bed Cover

Year: Year
Make: Make
Model: Model
Starting At*: $959

To Learn More about our truck bed covers, check out our BAK Finish Fundamentals.

Need your product faster? Visit your local dealer for expert installation and superior service.



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 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 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


102 Total
Gary P. Verified Buyer
6 January 2022
2019 ram 3500
The ease of installation and the overall function of the X4s is everything it says it is. This is my second tonneau, and the best. Doesn't limit your bed space, rolls and un-rolls easily. If I had another truck, no question id buy again.
Marco M. Verified Buyer
6 January 2022
Great product!
I am so happy with my bed cover. Easy to install,sturdy and it looks great!
William H. Verified Buyer
6 January 2022
The cover is awesome. This is my second truck to put your cover on and will continue to purchase. Great customer support also!
Jason J. Verified Buyer
30 December 2021
Best looking truck bed cover out there.
I've had multiple truck bed covers, this by far is the best one. Not only does it look great, it's easy to use.
Mark D. Verified Buyer
24 December 2021
Honestly, time will tell if the value of the product compared to the price is worth it. It's alot of money but if it holds up to the test of time it's certainly worth it. One of the best looking tonneau covers out there. Super easy to install/operate. Even the wife finds it easier to open than the awkward 3 part flip ones. I recommend them. Their customer service is also great too. Unfortunately t ... Read More
Ross P. Verified Buyer
17 November 2021
Amazing cover with excellent security and space to keep things dry.
Christopher A. Verified Buyer
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. Verified Buyer
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. Verified Buyer
1 October 2021
Best fit and finish with simple functionality. Ease of installation.
Craig H. 2015 GMC Canyon
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
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
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
9 July 2021
nice product
Kent E. 2006 Ford F-350 Super Duty
6 July 2021
Appreciate the prompt service and help you provide.
Bret K. 2021 Chevrolet Silverado 3500 HD
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.