Easy loading / unloading! Not only does it make it easier on your fingers, it also protects your magazine and helps eliminate wear on feed lips. Use it with all metal and plastic mags, including PMAG(R)s and Lancer. Simple to use in either mode Eliminates thumb pain and injury Eliminates wear on feed lips Prolongs magazine life Lightweight and fits in pocket Reliable in all weather Durable, reinforced polymer Tested and combat proven