The Heckler and Koch Universal Self-loading Pistol Tactical is a semi-automatic large-frame pistol chambered in 9mm, .40 S&W and .45 ACP. The original USP was introduced in the late 80s, and was designed specifically for law enforcement and military use. It was later selected for use by USSOCOM as well as other allied forces. The USP borrows its design from the Model 1911 pistol, a widely popular and influential design of the 20th century.
What makes the Tactical different from the other models is, on the surface, the extended threaded barrel, which is for applying a suppressor, but it also has an adjustable trigger and adjustable target-style sights. Otherwise the .45 ACP model is constructed from a USP 45 frame, while the 9mm and .40 S&W models are derived from the USP 9mm/.40 caliber frame.
Features include polygonal rifling for superior accuracy and durability, a match grade trigger, adjustable trigger stop, and a steel slide. The USP tactical can also be converted to any of nine trigger firing modes, offering a high level of versatility and customization. The USP Tactical is also available in a compact version.