Maglula Tactical X12-LULA .22LR Wide Single-Stack Pistol Magazine Loader and Unloader Loads for .22 LR wider-body more than 7/16" single-stack magazines having a projecting side button X12-LULA is a sliding loader and unloader and slides along the magazine Eliminates thumb pain and injury and protects fingers from pinching Eliminates wear on feed lips prolonging magazine life Highly reliable; durable reinforced polymer