Maglula 1911A1 Aligning Insert for UpLULA An aligning insert add-on for the UpLULA and 22UpLULA loaders. It assist loading single-stack magazines by eliminating wiggling of the mag inside the loader. It's an insert to your existing loader, not a new loader. If you are using single-stack magazine whether .45 cal. 1911, 9mm single-stack, or .22LR cal. converted 1911, as examples, we highly recommend that you use our new 1911A1 Aligner Insert with your UpLULA or 22UpLULA loaders. With it single-stack magazine will not wiggle inside the wide body of said loaders. The 1911AI are packed two in a blister. You connect the 1911A1 Aligner Insert to the ring of the loader and thereafter it can be "clicked" to the bottom of the loader to narrow it when using single-stack magazines. You can easily release it when loading wide-body mags.Assists loading single-stack mags, like:- .45 caliber 1911 mags.- .40 caliber 1911-wide mags.- 9mm single-stack mags.- .22 LR converted 1911-wide mags.- Eliminates mag wiggling in the loader.- Speeds up loading.- Highly reliable.- Durable reinforced polymer.