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.Caliber: 22 LRFinish: BlackMaterial: PolymerType: Loader/UnloaderModel Fit: Universal 22LR