Magazine testing tool

This is a tool we developed for ourselves to help us during magazine assembly. We found it to be quite useful so we decided to share it with you.

You can insert this tool into the magazine to check the capacity. At first glance, there is no visual difference between our 10rd and 13rd magazines, expect the internal limiter. Therefore, with this tool, you can quickly check the capacity without the need to load the mag.

Use can also use it during magazine assembly, to check capacity and help to seat the spring. It could even be used during initial assembly to  push in the last few coils.

Finally, this tool can be used to compress the spring inside a stock magazines when installing an extension (like the one for the CZ and Anschutz magazines).

See the tool in action here:
https://www.youtube.com/watch?v=xSHVAEhuaD0

For those of you that have a 3D printer, or a friend with a 3D printer, you can download and print this for free:

https://www.printables.com/model/1427972-position7-22lr-magazine-tools-and-accessories