Beretta PX4 Storm Full Size Factory Grip Backstrap – Large

The Beretta PX4 Storm Full Size Factory Grip Backstrap – Large is an original replacement grip panel designed to give shooters with larger hands a more comfortable and secure hold on their Beretta PX4 Storm pistol. This OEM backstrap is a direct fit for the full-size PX4 frame and swaps easily with the medium or small backstraps included from the factory, allowing you to customize the grip circumference to better match your hand size and shooting style.

Key Features

Factory-Original Beretta Part:
• Designed by Beretta to match the size and fit of the PX4 Storm’s modular grip system, ensuring proper ergonomics and seamless integration with the pistol frame.

Large Size Grip Profile:
• Provides a bigger grip circumference for shooters with larger hands, improving comfort, leverage, and control during recoil and rapid fire sessions.

Easy Swap-Out Design:
• Installs easily in place of the standard medium or small backstrap using the pistol’s factory modular system—no modifications required to your firearm.

Durable Polymer Construction:
• Built from high-strength polymer to match the quality and appearance of the PX4 Storm frame, while resisting impact and handling wear.

Improved Control & Comfort:
• The larger profile helps many shooters achieve a more natural, solid grip on the full-size PX4, which can improve confidence and accuracy during both practice and real-world use.

Technical Specifications

Performance & Practical Use

The PX4 Storm’s modular grip system is one of its standout ergonomic features, letting shooters tailor the feel of the pistol by swapping backstraps. The large backstrap increases grip circumference, giving tall or large-handed shooters a more confident and natural hand position—especially useful for sustained shooting, rapid targets, or heavier calibers like .40 S&W and .45 ACP.

With the factory large backstrap installed, many users report improved leverage and stability compared with the medium or small sizes, which can help reduce muzzle flip and enhance follow-up shot speed. Because it’s an OEM part, it maintains Beretta’s original fit and finish standards.

Best Suited For

✔ Full-size PX4 Storm shooters with larger hands
✔ Those seeking enhanced grip comfort and control
✔ Users who want to optimize grip ergonomics for high-volume firing
✔ Shooters who prefer OEM parts over aftermarket replacements

User Tips

Swapping Backstraps:
The PX4 Storm was designed with interchangeable backstraps to accommodate different grips easily. The backstrap can be changed with minimal tools—remove the current backstrap and slide the large one into place until it clicks securely.

Hand Size Matching:
If your medium backstrap feels too small or your reach to the trigger feels cramped, the large backstrap can create a more comfortable and stable grip.

Grip Accessories:
Consider pairing the large backstrap with adhesive grip tape or Talon/Pro Talon grips for even better traction if you shoot in wet or high-sweat conditions.

Fit Verification:
Before extended range use, shoot a few test rounds to confirm that the grip feels secure and your finger naturally reaches the trigger and controls. This ensures the swap suits your hand size and shooting style.