The Heckler & Koch USP (Universal Self-loading Pistol) is a semi-automatic handgun designed for versatility and reliability. Introduced in the 1990s, it features a polymer frame and a double-action/single-action trigger system, allowing for both safety and quick firing. The USP is available in various calibers, including 9mm and .45 ACP, making it suitable for different shooting needs. This pistol is known for its accuracy and durability, often used by law enforcement and military personnel worldwide. The USP incorporates a modular design, enabling users to customize grip sizes and controls, enhancing user comfort and performance during use.