The Glock G19 Gen 5 MOS enhances the already exceptional Gen 5 model with the addition of the Modular Optic System (MOS). This precision-machined slide provides a platform for mounting popular optic sights seamlessly. Featuring multiple adapter plates, it allows for quick and easy installation of miniature electronic sights at the rear of the slide. The Gen 5 Glock also incorporates front serrations for enhanced grip and manipulation efficiency. Maintaining all the hallmark Gen 5 features, this compact-size pistol boasts the latest Glock nDLC surface finish, renowned for its unmatched hardness and resistance to rust. It includes the high-traction Gen 5 frame texture, a reversible magazine catch for rapid adjustments and an ambidextrous slide stop lever for versatile operation. The Glock Modular Backstrap System (MBS) offers individual operator adjustability, while the universally-praised Glock Safe Action System ensures reliable performance. Additionally, high-visibility orange magazine followers further enhance usability and convenience.