I decided to re-think my “sharpie” marker organization scheme.
Soon it will be Arizona “winter”, which always brings relatives from all over the country to spend some beautiful days out of the cold. Which means I will continue to take them out in the desert to go shooting. That brings with it a few “issues”, in that all the mags look alike to most people. Keeping which mag goes to which gun straight has always been a problem. Usually the mag won’t fit or lock into place, but that just means more confusion and frustration for me and my guests.
I’ll bring these:

And the mags will look like this in the range bag:

So this is going to be my solution.
A colored tape marking system that should be much simpler for everyone to keep straight.

And with my AR pattern rifles the same solution should keep things safer for all. Other than the AR10 lowers, all the others accept every other caliber’s mags - which could really turn out badly. I’ve marked the ammo boxes with the same color labeling system, so in a SHTF situation - everybody should know the blue boxes and mags are for 5.56x45, and the green for 7.62x39, etc.

Can anybody tell me what’s wrong with this picture?