The Advantage Arms CONV KIT FOR LE20-21 W/BAG is a high-precision conversion kit that brings the proven performance of .22 Long Rifle to your Glock 20, 21, 20SF, or 21SF pistol with a compact 4.6" barrel and an authentic black finish. This kit installs easily to transform your handgun into a low-recoil, cost-efficient training and plinking platform while maintaining reliable cycling with a 10-round magazine and a 1-10Rd magazine option for versatile shooting sessions. Included with the kit is a durable range bag, designed to keep parts organized and ready for on-site practice, travel, or range days. Built by Advantage Arms, this conversion kit blends functional engineering with a clean, professional look, delivering crisp trigger behavior and consistent accuracy that helps shooters develop fundamentals, enhance sight picture discipline, and safely repeat drills without wear on your centerfire barrel. The combination of a compact 22LR barrel, robust construction, and compatibility with Glock 20/21 family frames makes it a practical choice for training, hobby shooting, or refining marksmanship skills in a controlled, cost-effective way.