The Heckler & Koch P30S V3 is a .40 S&W DA/SA pistol with a 3.85-inch polygonal-rifled barrel, polymer frame, interchangeable backstrap grips, and an ambidextrous safety/decocker. Capacity is 13+1 rounds and weight is 26.8 oz (1.7 lbs). Overall length is 7.12 inches. 
 

Key Specifications 

• Brand: Heckler & Koch 
• Model Name: P30S V3 
• Caliber: .40 S&W 
• Action: Double/Single Action (DA/SA) 
• Capacity: 13+1 rounds 
• Barrel Length: 3.85 inches 
• Weight: 26.8 oz (1.7 lbs) 
• Frame Material: Polymer 
• Grip Type: Black Finger Grooved Interchangeable Backstrap 
• Safety Features: Ambidextrous Safety / Decocker 
• Sights Configuration: 3-Dot Fixed 
• Overall Length: 7.12 inches 
   

Features 

 
The interchangeable backstrap system allows the grip to be sized to the shooter's hand without aftermarket parts. Finger grooves on the frame improve grip stability during firing. The ambidextrous safety/decocker works the same for left- and right-handed shooters. The polygonal-rifled barrel at 3.85 inches keeps the pistol compact while maintaining accuracy. At 13+1 rounds, the P30S offers solid capacity for the .40 S&W platform. 
 

Usage 

 
The P30S V3 handles home defense, competitive shooting, and range practice equally well. The compact dimensions make concealed carry practical, and the 13+1 capacity is meaningful for defensive applications.

The HK P30S V3 in .40 S&W is well-regarded for its ergonomics. The adjustable grip panels and interchangeable backstraps are regularly cited as a genuine advantage, and the finger grooves help with stability during rapid fire. Shooters across hand sizes tend to find a comfortable configuration.

Reliability with various ammunition types is a consistent positive. The .40 S&W platform can be picky with some pistols, but the P30S handles it without drama across most user reports.

The DA/SA trigger divides opinion in the usual way. Some shooters appreciate the flexibility; others find the transition from first-shot double-action to subsequent single-action pulls takes meaningful practice before it feels natural. Trigger smoothness gets positive remarks from experienced DA/SA shooters.

Size and weight get some discussion for carry purposes. At 7.12 inches overall and 26.8 oz, the P30S is on the larger side for concealed carry, and some users prefer a slimmer option for daily wear. The 13+1 capacity is generally viewed positively for a pistol of this size. Price is recognized as premium but considered appropriate for HK's build standards. Holster availability is sometimes discussed as narrower than more common platforms.