The maglula unloader is simple to use. The unloader eliminates thumb pain wear on feed lips and prolongs magazine life. It is crafted from durable reinforced polymer is lightweight and is reliable in all weather. This model is compatible with Ruger 10/22 magazines. Ruger's BX-25 magazine can be unloaded in about 5 seconds!Caliber: 22 LRFinish: BlackMaterial: PolymerType: Magazine UnloaderModel Fit: 10/22Brand Fit: Ruger