The Heckler and Koch (HK) USP9 Expert V1 is a high-precision semi-automatic pistol in the 9mm Luger caliber. Part of the Expert V1 series this model features a 5.2-inch barrel and is designed for right-handed shooters. The pistol has a 10+1 round capacity and employs a DA/SA (Double Action / Single Action) mechanism offering versatility in trigger pull and shooting style.