The 22UpLULA loader and unloader is made for loading .22LR wide body mags. greater than 1/2 Inch, like .22LR converted 1911 mags and other .22LR converted mags. It has a narrower metal beak designed for .22LR rounds. It will load single stack/1911-wide magazines and double stack/wide body magazines. The 22UpLULA will not load .380 to .45 caliber magazines, Tactical solutions 1911 SS 10rd Aluminum magazine, or Tactical Solution 10rd Aluminum magazine..