The Heckler & Koch HK45 Tactical V1 is a .45 ACP pistol with a 5.2-inch threaded barrel. It has night sights, a black polymer frame with Picatinny rail, and a 10-round capacity. The threaded barrel configuration requires additional federal paperwork for suppressor use. 
 

Key Specifications 

• Brand: Heckler & Koch 
• Model: HK45 Tactical V1 
• Caliber: .45 ACP 
• Action: Semi Auto 
• Capacity: 10+1 
• Barrel Length: 5.2 inches 
• Color/Finish: Black / Black Cerakote 
   

Detailed Features 

• 5.2-inch threaded barrel 
• Night sights 
• Picatinny rail 
• Black polymer frame with Black Cerakote serrated steel slide 
• Ambidextrous controls

Owners of the HK45 Tactical V1 buy it primarily for the threaded barrel and night sights combination, which makes it a ready platform without requiring aftermarket modifications. The longer barrel length compared to the standard HK45 is noted as a positive for sight radius.

The night sights get consistent praise. Shooters who use this pistol in low-light conditions appreciate having the sights ready from the factory. The Cerakote slide finish is generally seen as a durable and practical choice for a pistol intended for hard use.

The price is the clearest objection. The Tactical V1 costs more than the base HK45 and buyers know they are paying for the threaded barrel and night sights package. Some owners feel a standard HK45 with an aftermarket barrel is equivalent at lower cost; others value having everything matched from the factory.