MPX Speed loader V1
thingiverse
I've been using this setup for about a year now, and I'm finally uploading it so everyone can benefit. This will enable you to load 15 rounds at a time into your Sig MPX magazines with ease. The magazine locks into place during loading, making the process smooth and hassle-free.
Download Model from thingiverse
With this file you will be able to print MPX Speed loader V1 with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on MPX Speed loader V1.