The 22UpLULA loader and unloader is made for loading .22LR wide body mags greater than 1/2", such as .22LR converted 1911 mags and other .22LR converted mags. It will load single-stack/1911-wide magazines and double-stack/wide body magazines. Note: It will not load .380 to .45 caliber magazines, Tactical Solution 1911 SS 10rd aluminum magazine, or Tactical Solution 10rd aluminum magazine.