The Glock G20 V MOS is a full-size 10mm semi-automatic pistol built for maximum performance featuring a 4.61-inch barrel and a 10+1 capacity. It comes equipped with a black gas nitride finish and a polymer frame engineered to handle the power of the 10mm cartridge. This version includes three 10-round magazines and features an optics-ready slide with Glocks Modular Optics System.