The Glock 43X MOS is a versatile, subcompact pistol chambered in 9x19mm, designed with features that make it an ideal choice for concealed carry and tactical use. The MOS (Modular Optic System) version of the G43X includes slide cuts specifically engineered for micro-optics, allowing users to easily mount red dot sights. The Glock Slim Mounting Rail offers even more compatibility with various tactical accessories. The G43X MOS retains the Slimline design that is well-known for its comfortable concealability, featuring a short barrel length paired with a compact-sized grip, making it both easy to handle and highly concealable. This model includes several enhancements from Glock's Slimline series, such as a short trigger distance and a frame with a built-in beavertail, similar to what is seen on the G43 and G42. The G43X MOS also benefits from the accurate, match-grade Glock Marksman Barrel (GMB) found in the Gen 5 series, along with precision-milled front serrations for improved handling. The pistol's slim, single-stack magazine, with a capacity of 10 rounds, is designed with an orange follower for increased visibility. However, it's important to note that the G43X MOS does not include adapter plates for mounting optics, which need to be purchased separately.