9mm GLOCK G17 Gen3 9×19 Handgun PI1750203 Glock 17 + 1 Round Double Action Only 9MM w/Fixed Sights The Glock 17 in caliber 9×19 is the most widely used law enforcement pistol worldwide. Because of its unsurpassed reliability, magazine capacity of 10 + 1 or 17 + 1 and its low weight, it is trusted …