Maglula's striplula magazine loader is an all-in-one 10rd stripper clip and loose rounds magazine loader. It eliminates finger pain prolongs magazine life and makes for easy and quick loading. Constructed of durable reinforced polymer the striplula magazine loader is reliable in all weather and fit for ambidextrous use. This model is compatible with Steyr AUG factory magazines.Caliber: 223 Rem/5.56x45Material: PolymerType: LoaderModel Fit: AUGBrand Fit: Steyr