The Glock 19 Gen4 MOS is one of the preferred compact total-sizing-frame pistols for day to day have, house defense, and Specialist use. In the event you’re searching for Glock 19 Gen 4 available for purchase, Glock 19 MOS gen four, or variations like g19 gen 4 mos, This information will make it easier to recognize what will make the Gen4 MOS pro