M4 / AR15 LULA loader and unloader for all such metal and plastic 5.56mm / .223 magazines, including PMAG, Hexmag, and Lancer. Loads 10, 20, 30, 40 & 100 round 5.56 / .223 magazines, like : M4 / AR15 USGI (NATO STANAG 4179) Magpul PMAG Lancer Hexmag H&K metal 416 / SA80 Beretta AR 70-90 SIG Arms (black mags) Benefits : All-in-one magazine speed loader and unloader ! 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 6.8mm - May load some 6.8 magazines. 6.5 Grendel - May load some 6.5 magazines.