The Maglula LULA Magazine Loader and Unloader AR-10B Gen II is a great tool that allows you to load and unload magazines fast, effortlessly and painlessly. The Maglula LULA Magazine Loader and Unloader is constructed of polymer, manufactured by Maglula Ltd. and made in Israel to military specifications. Fits 5, 10, 15, 20, and 25 round AR10B Gen. II Armalite metal magazines.FeaturesProtects your fingers and the magazineHighly reliableSimple to use in either modeEliminates thumb pain and injuryEliminates wear on feed lipsProlongs magazine lifeFits 5, 10, 15, 20, and 25 round AR10B Gen. II Armalite metal magazines