The maglula sr25/dpms/pmag lula loader/unloader loads 5 10 20 & 25 round sr25 type metal and polymer 7.62/.308 magazines.It does not fit early ar10 waffle magazines. It is simple to use in either loading or unloading mode. The loader/unloader eliminates thumb pain and wear on feed lips. It also prolongs magazine life. It is lightweight and small enough to fit in your pocket.The loader/unloader is crafted from durable reinforced polymer and is reliable in all weather.Caliber: 308 WinFinish: BlackMaterial: PolymerType: Loader/UnloaderModel Fit: SR25 DPMS PMAG