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, lightweight, and is reliable in all weather. This model is compatible with Ruger 10/22 magazines. Super-fast unloading Eliminates thumb pain and injury Eliminates wear on feed lips Lightweight and fits in pocket Unloader fits and unloads all 10/22 type 22LR magazines of all manufacturers, including Ruger factory magazines, Butler Creek, Black Dog, Eagle, ProMag, Shooters Ridge, Tactical Inc