The RealTruck BAK Revolver X4S is the upgraded “better” tier in BAK’s Revolver hard roll-up family—and if you liked the X2, the X4S takes everything up a notch. You get the same patented rotational locking rails and automatic slam latches that made the X2 a best-seller, plus upgraded materials, refined weather protection, and an all-matte black finish that gives the cover a stealthy, premium look on any truck. We install the X4S at our Phoenix and Peoria shops and it’s quickly become the go-to choice for Phoenix-area truck owners who want a roll-up that looks as good as it performs.
The X4S’s headline feature is RealTruck’s TriShield engineering—a one-piece aluminum-reinforced 70-grade vinyl surface that ships with no factory seams. That’s the difference between a roll-up that leaks in a hard rain and one that keeps your bed bone-dry. Pair that with flush-fitting side seals and an integrated bulkhead seal, and the X4S is the most leakproof hard roll-up on the market, folding, retractable, or otherwise. The all-matte black aluminum slats, clamps, and hardware give it a unified 360-degree protective finish that hides wear and matches most truck trim packages out of the box.
Security is still Level-3. The patented interlocking aluminum slats are slash-resistant (no hook-and-loop fasteners to cut), support 400 lbs. of evenly distributed load, and lock down with automatic slam latches. Roll it up with PrecisionRoll technology and you’ve got 100% of the bed open for cargo. The X4S is also compatible with most 5th-wheel hitches, which is a real plus for anyone towing.
Installation is a clamp-on, no-drill affair that takes less than an hour. RealTruck assembles the X4S in Missouri and backs it with a 5-year warranty. Stop by Camper Capital in Phoenix or Peoria to see one on a truck and we’ll get you scheduled for a professional install—same-week appointments are usually available.









