The Beretta PX4 Storm is a full-size semi-automatic pistol chambered in 9mm Luger. It has a 4-inch barrel, holds 10+1 rounds, weighs 27.70 oz (1.7 lbs), and measures approximately 7.50 inches overall. The action is double/single (DA/SA). The slide is steel with a black Bruniton finish; the frame is polymer with an interchangeable backstrap grip in black. Sights are three-dot white dot contrast. 
 

Key Specifications 

• Brand: Beretta USA 
• Model: Px4 Storm Type F Full Size 
• UPC: 082442817286 
• Caliber: 9MM Luger (9x19 Para) 
• Capacity: 10+1 rounds 
• Barrel Length: 4 inches 
• Overall Length: 7.50 inches (approx.) 
• Weight: 1.7 lbs (27.70 oz) 
• Finish: Black Bruniton Steel slide / Polymer frame 
• Action Type: Single/Double Action 
   

Detailed Features 

• Rotating Barrel System: The PX4's barrel rotates on firing, which reduces felt recoil compared to a tilting-barrel design. Most shooters notice the difference in follow-up shot control. 
• DA/SA Action: First shot fires double-action; subsequent shots are single-action. The decocking lever on the ambidextrous safety drops the hammer safely. 
• Ambidextrous Manual Safety: Accessible from either side, works as both a safety and decocking lever. 
• Three-Dot Contrast Sights: White dot front and rear for quick alignment in typical lighting conditions. 
• Interchangeable Backstrap Grip: Adjusts grip girth to fit different hand sizes.

The Beretta PX4 Storm Full Size in 9mm gets consistent positive feedback, particularly for ergonomics and the rotating barrel's effect on recoil.

The rotating barrel is the feature most commonly called out by owners. Users who've compared it side-by-side with tilting-barrel pistols describe noticeably less muzzle flip, which helps with control during rapid fire. The grip shape and overall ergonomics get good marks — most owners find it comfortable over long sessions. Reliability with varied ammunition is well-regarded, and the DA/SA action appeals to shooters who prefer a heavier first-shot trigger with a lighter single-action pull afterward.

On the practical side, the full-size frame makes it bulky for concealed carry — owners frequently mention this as a reason they chose it for home defense or range use rather than daily carry. Aftermarket support is more limited compared to Glock or M&P, which matters for those wanting holster options or trigger work. Overall sentiment is positive, with the rotating barrel and ergonomics as the defining reasons people choose it.