The HK USP9 Compact V1 is a DA/SA 9mm pistol with a 3.58-inch polygonal-rifled barrel and a decocker/manual safety. At 27.20 oz and 6.81 inches overall, it sits in the compact service-pistol class. The polymer frame keeps weight reasonable while the steel slide and barrel maintain durability. Capacity is 10+1 with the standard magazine. 
 

Key Specifications 

• SKU: 3457249 
• UPC: 642230261068 
• Brand: HK (Heckler & Koch) 
• Model Name: USP9 Compact V1 
• Caliber: 9mm Luger 
• Action: Double/Single Action (DA/SA) 
• Capacity: 10+1 rounds 
• Barrel Length: 3.58 inches 
• Overall Length (OAL): 6.81 inches 
• Weight: 27.20 oz 
• Finish: Black 
• Grip Material: Black Polymer 
• Sights Configuration: Fixed 
• Trigger Type: Standard 
• Safety Features: Decocker/Manual 
   

Detailed Features 

The DA/SA system means the first shot fires with a longer, heavier double-action pull, with subsequent shots using the lighter single-action pull. The manual decocker lowers the hammer safely without pulling the trigger. The polygonal rifling gives slightly higher velocity than conventional rifling at equivalent barrel lengths and makes the bore easier to clean. Fixed sights are robust and reliable. 
 

Target Audience 

Shooters already familiar with DA/SA operation who want a compact HK platform. Also suitable for duty or home defense use where the decocker safety is valued over a simple striker-fired trigger. 
 

Usage Scenarios 

Concealed carry, home defense, and range shooting. Particularly suited to users who prefer carrying hammer-down on DA for the first shot.

The USP9 Compact's build quality and reliability get consistent praise. H&K's reputation for durable construction is reflected in user feedback, with the materials and fit commonly described as holding up well over time.

The DA/SA trigger system divides opinion. Shooters who prefer or are already trained on DA/SA find the system natural. The long first-pull-to-lighter-single-action transition is familiar and they consider the decocker a safety advantage. Shooters coming from striker-fired guns find the mode transition less intuitive and some report a learning curve before the DA pull feels consistent.

Size is described as workable for concealed carry, though a number of users note the USP Compact is larger than some other compact 9mm options, which matters for people drawing specific size comparisons.

Accuracy gets favorable feedback across the board. Users report consistent tight groups at various distances, and the polygonal barrel's contribution to bullet stability is occasionally mentioned.

Aftermarket accessories are noted as more limited compared to Glock or Sig Sauer platforms, which some users factor into their purchase decision.

Price discussion is common. Most buyers accept the cost as reflecting H&K's manufacturing standards, but some find the price-to-feature ratio less favorable relative to high-volume competitors.