The Advantage Arms Glock Conversion Kit transforms your Glock 19 or 23 Gen 5 pistol to fire .22 LR ammunition providing an accurate and cost-effective training solution.Advantage Arms Glock 19/23 Gen 5 Conversion Kit.22 LR caliber conversionAdjustable sights for precision shootingLast round lock open functionality30-second installation - no gunsmithing required1-year factory direct warrantyPerfect for training recreational shooting and reducing ammunition costs while maintaining the familiar feel and operation of your Glock pistol.