The Glock 19 MOS (Modular Optic System) is a versatile, compact, semi-automatic pistol chambered in 9mm, suitable for a wide range of uses from concealed carry to duty use and competition. It features a 4.02-inch barrel and a standard magazine capacity of 15 rounds. The Glock 19 MOS combines the reliability of the Glock 19 with the added capability to mount optics. This model includes Glock's Safe Action trigger system, ensuring a consistent and safe trigger pull, and a durable polymer frame with an ergonomic grip and textured surfaces for enhanced control. The MOS version specifically includes an optic-ready slide that allows for the easy installation of red-dot sights, enhancing target acquisition and accuracy. Unique to the MOS model are the modular optic mounting plates that accommodate a variety of popular red-dot sights. The Glock 19 MOS also features front and rear slide serrations for improved handling and manipulation. This model maintains the balance and compact size of the Glock 19 while offering the flexibility of modern optic compatibility.