Ever go to the range and see everyone with all their un-necessary high speed gear? Have you ever been like "Dang.....I wish I could put my spare magazines somewhere on me other than the table." Well now you can too except yours will be way better and it clips on your belt! Can be used inside or outside the waistband. It holds the magazines firmly in place due to a not patented method developed by me. You can turn it upside down and the magazines will not fall out. However, I have not tested rolling with it on yet. The insertion point has also been angled to aid in a fast and easy return to the holster.
Designed specifically for Smith & Wesson MP Compact .40 magazines! I have not tested it yet with their 9mm or full size magazines yet. I do not know if other manufacturers mags will work with this or not.
EDIT I've uploaded the Sketchup file, and version 2 of the clip which is much stronger, better looking, and easier to install.
Volume: 37.01 cubed
Area: 243.39 squared
The belt clip can be reversed to face the magazines in the shooters desired position. I attached them with a small screw.
Print time for me was 1 hour 14 minutes. If you see in the pictures one of the sides has a sticking problem but I just let it ride out.