The Advantage Arms MOD Series Conversion Kit transforms your Glock 19/23 Gen 5 from 9mm/.40 S&W to .22LR for cost-effective training and practice sessions. This complete kit includes a 4.02" threaded barrel two 15-round magazines and comes optics-ready with recessed cuts for red dot sights.Advantage Arms Conversion Kit for Glock 19/23 Gen 5Converts 9mm/.40 S&W to .22LR caliber4.02" threaded barrel for suppressor compatibilityTwo 15-round magazines includedOptics-ready with red dot sight compatibilityLast round lock open feature30-second installation processIncludes range bag for convenient transport1-year factory direct warrantyPerfect for affordable range training muscle memory development and suppressed shooting with your existing .22LR suppressor. Note: Red dot sight sold separately.