The Glock 48 MOS is a 9mm Luger semi-automatic pistol with a 4.01-inch barrel and a slide milled for mounting a micro red-dot optic. It ships with two 15-round magazines and a front accessory rail on the dust cover for lights or lasers. The slim single-stack-style frame keeps the grip width down while the optics-ready slide lets shooters run a reflex sight without a separate plate system. This configuration pairs a full-length grip with a thinner cross-section than a standard double-stack Glock, which is the main appeal for owners who carry the gun daily.