The Heckler & Koch P30 is a .40 S&W semi-automatic pistol with a single/double-action trigger, polymer frame, and steel slide. At 26.1 oz with a 3.9-inch barrel, it sits in the compact category. Night sights front and rear provide usable aim in low-light conditions. 
 

Key Specifications: 

• Manufacturer: Heckler & Koch 
• Model: P30 
• Caliber: .40 S&W 
• Barrel Length: 3.9 inches 
• Capacity: 13 rounds 
• Weight: 1.63 lbs (26.1 oz) 
• Frame Material: Polymer 
• Slide Material: Steel 
• Action Type: Single/Double Action  
• Safety Features: Thumb safety with decocker 
• Sights Type: Front - 1-Dot Night; Rear - 2-Dot Night 
   

Detailed Features: 

 
The textured polymer grip holds well in adverse conditions, and the adjustable backstraps and side panels allow fitting to different hand sizes — a practical feature for a pistol that may be shared or used over many years as grip preferences evolve. Thumb safety with decocker lets shooters carry hammer-down with an accessible safety lever. Night sights fore and aft give solid target acquisition in dim environments. 
 

Target Audience: 

 
A good fit for shooters who want HK's DA/SA trigger system in a compact .40 S&W with night sights included. The ergonomic adjustment options make it work for a wider range of hand sizes than most fixed-grip pistols. 
 

Usage Scenarios: 

• Concealed carry where compact size and night sights matter. 
• Home defense where 13-round capacity and low-light capability are priorities. 
• Competitive shooting where SA/DA operation and ergonomic adjustability support performance.

The HK P30S .40 S&W gets strong marks on ergonomics and build quality, with some consistent criticisms around price and size.

Ergonomics draw the most consistent praise. The adjustable backstraps and side panels let shooters dial in a custom fit, and the grip texture is well-regarded for control during extended sessions. The overall feel is described as solid and well-finished.

Build quality is taken for granted by most HK owners — the P30S meets expectations for durability and reliability, which is part of what justifies the higher price point.

Night sights are appreciated by owners who prioritize low-light use. Accuracy at short and medium ranges is consistently rated well.

The .40 S&W caliber gets some discussion around balance between stopping power and recoil, with most owners finding it workable.

Criticisms center on three areas: size (some find it bulkier than expected for a compact), trigger feel (opinions split on pull weight and travel length), and price (HK's premium pricing draws scrutiny when comparable features are available cheaper). Aftermarket accessory availability is also more limited than for more common platforms.