The Glock 21 Gen 4 UG2150201 is a semi-automatic pistol designed and manufactured by Glock. This pistol is chambered in 45 ACP and has a capacity of 10+1 rounds. It features a black matte finish, giving it a sleek and tactical appearance. The Glock 21 Gen 4 comes equipped with a variety of features to enhance its performance and usability. It includes a magazine loader, cleaning rod, and brush, making it easier to load and maintain. The pistol also has interchangeable backstraps, allowing the user to customize the grip to their preference. It features a reversible magazine catch, providing versatility for left-handed shooters. The receiver of the Glock 21 Gen 4 is made from polymer and incorporates finger grooves, offering a comfortable and secure grip. The pistol has a barrel length of 4.60 inches and an overall length of 7.59 inches. It weighs approximately 26.28 ounces, making it lightweight and easy to handle. For improved accuracy and aiming, the Glock 21 Gen 4 is equipped with white dot front sight and white outline rear sight. The pistol also features the Safe Action system, which includes three separate automatic safeties, ensuring safe operation. The Glock 21 Gen 4 UG2150201 comes with three magazines, providing ample ammunition capacity for the user. Overall, this pistol offers reliable performance, durability, and flexibility, making it suitable for a variety of applications such as self-defense or law enforcement use.