The Advantage Arms Conversion Kit transforms your Glock 19 or 23 Gen 4 pistol into a .22 LR firearm for cost-effective training and practice shooting with 30-second installation.Advantage Arms Conversion Kit for Glock 19/23 Gen 4.22 LR caliber conversion4.02" barrel length10-round capacityAdjustable sights for precision shootingLast round lock open feature30-second quick installationIncludes range bag accessory1-year factory direct warrantyPerfect for training target practice and reducing ammunition costs while maintaining the familiar feel and operation of your Glock pistol.