The Heckler & Koch VP40 is a full-size striker-fired pistol chambered in .40 S&W, based on the VP9 platform. The polymer frame, steel slide, 4.1" barrel, and 10-round capacity are the key specs. At 28.9 oz. it's lighter than metal-framed .40 S&W options while still carrying enough mass to manage the caliber's recoil. 
 

Key Specifications 

• Manufacturer: Heckler & Koch 
• Model: VP40 
• Caliber: .40 S&W 
• Barrel Length: 4.1 inches 
• Capacity: 10 rounds 
• Weight: 28.9 ounces (1.8 pounds) 
• Frame Material: Polymer 
• Slide Material: Steel 
• Total Height: 5.45 inches 
• Total Length: 7.34 inches 
• Safety Features: Trigger safety, firing pin safety 
   

Detailed Features 

The VP40 shares the VP9's action geometry and ergonomic features — interchangeable backstraps and lateral grip panels in multiple sizes, dual slide releases, and reversible magazine release. Trigger safety and firing pin safety are the active safety mechanisms; there is no manual safety or decocker, consistent with the VP platform's striker-fired design. 
 
Fixed night sights with a 1-Dot front and 2-Dot rear are standard. Dual slide releases on both sides of the frame give left-handed shooters equivalent access. The VP40 Tactical variant has a threaded barrel. 
 
In .40 S&W the VP40 produces more felt recoil than the 9mm VP9 at the same weight — that's inherent to the caliber, not a design flaw. The grip angle and ergonomics are otherwise identical to the VP9.

VP40 owners are broadly satisfied, with ergonomics and reliability as the consistent positives. The interchangeable grip system works well for shooters who find standard polymer grips a poor fit. The dual slide releases and ambidextrous magazine release are practical features that left-handed shooters specifically call out. Reliability with standard .40 S&W loads is generally reported as problem-free.

Accuracy gets positive marks. Multiple owners describe the trigger as better than expected for a factory striker-fired gun, with a reasonable reset distance.

The criticisms are predictable for the .40 S&W platform. Recoil is snappier than 9mm, and some owners find it tiring in extended sessions. The 10-round capacity in the restricted configuration is limiting compared to full-capacity VP40 magazines. Weight at 28.9 oz. is occasionally flagged for all-day carry. Price comparison to Glock 23 comes up often — the VP40 costs more, which some buyers justify with the better ergonomics and sights, others question. Trigger reset distance is occasionally noted as longer than competitors.